giúp mình với mik đang cần rất gấp r Là y, lin x, kế?,|\int x^{x}|^{x}e^{x}=3x^{3},C.~(-x^{3}-3x^{2}-2)(,|\frac{2^{2}}{3}\cdot3:2.x.\frac{3}{x}\cdot\left(~\int\frac{2^{x}}{x}\right),d)~z_{1}~x^{2}-~z_{~}.~.,C.~\int_{1}^{2}|x|...|^{2q}-\frac{9}{x^{2}}+\frac{9}{x^{2}}|d x|,\left(\frac{3}{8}\right)^{\prime}.(-2^{3-x-4}-1)\cdot t d=500,\frac{19}{7}\sqrt{...}-\frac{19}{...}-\frac{19}{...},\xi_{3}~-~x^{3}~:~2^{2}\sum_{x}^{x}\frac{1}{x^{2}}-S_{2}O,q)~(5+\overline{z},\overline{z})~~~\sqrt{~5~}~~x\overset{t\circ}{~},\left[\right.(2.~4)~x^{5}~+~(5~-~2)~\left]\right.,I.~3.(x-y)-2^{2}=12.,|\overrightarrow{A},\overrightarrow{A}^{'\prime,\overrightarrow{j}};\overrightarrow{z}'^{\prime\prime};~\overrightarrow{S},~\overrightarrow{z},1/3.2^{x^{2}+y^{2}}:2^{x^{2}}.7^{x^{2}}.7^{x},|14...2^{2}.(2...x~-~4)^{-}~\forall~\in~45,\lim(5-4)^{-}.2...~~=~2,5~~~,~43~,Dòng kẻ tiêu chuẩn.

Question

giúp mình với mik đang cần rất gấp r Là y, lin x, kế?,|\int x^{x}|^{x}e^{x}=3x^{3},C.~(-x^{3}-3x^{2}-2)(,|\frac{2^{2}}{3}\cdot3:2.x.\frac{3}{x}\cdot\left(~\int\frac{2^{x}}{x}\right),d)~z_{1}~x^{2}-~z_{~}.~.,C.~\int_{1}^{2}|x|...|^{2q}-\frac{9}{x^{2}}+\frac{9}{x^{2}}|d x|,\left(\frac{3}{8}\right)^{\prime}.(-2^{3-x-4}-1)\cdot t d=500,\frac{19}{7}\sqrt{...}-\frac{19}{...}-\frac{19}{...},\xi_{3}~-~x^{3}~:~2^{2}\sum_{x}^{x}\frac{1}{x^{2}}-S_{2}O,q)~(5+\overline{z},\overline{z})~~~\sqrt{~5~}~~x\overset{t\circ}{~},\left[\right.(2.~4)~x^{5}~+~(5~-~2)~\left]\right.,I.~3.(x-y)-2^{2}=12.,|\overrightarrow{A},\overrightarrow{A}^{&#x27;\prime,\overrightarrow{j}};\overrightarrow{z}&#x27;^{\prime\prime};~\overrightarrow{S},~\overrightarrow{z},1/3.2^{x^{2}+y^{2}}:2^{x^{2}}.7^{x^{2}}.7^{x},|14...2^{2}.(2...x~-~4)^{-}~\forall~\in~45,\lim(5-4)^{-}.2...~~=~2,5~~~,~43~,Dòng kẻ tiêu chuẩn.

QuocKhanh · Accepted Answer

Bài 4:
1) 2^x = 32
=> 2^x = 2^5
=> x = 5

2) 6x^3 - 8 = 40
=> 6x^3 = 48
=> x^3 = 8

=> x^3 = 2^3
=> x = 2

3) 3 / x^3 - 67 = 5^3
=> 3 / x^3 = 125 + 67
=> 3 / x^3 = 192
=> x^3 = 3 / 192
=> x = (3 / 192)^(1/3)

4) 4 * 2^x - 3 = 125
=> 4 * 2^x = 128
=> 2^x = 32
=> 2^x = 2^5
=> x = 5

5) 49 * 7^x = 2401
=> 7^2 * 7^x = 7^4
=> 7^(2 + x) = 7^4
=> 2 + x = 4
=> x = 2

6) 2 * (2^(3x-1) - 1) + 16 = 500
=> 2^(3x-1) - 1 = (500 - 16) / 2
=> 2^(3x-1) - 1 = 242
=> 2^(3x-1) = 243
=> 3x - 1 = log2(243)
=> 3x = log2(243) +1
=> x = ( log2(243) +1)/3

7) (3x-1)^3 = 125
=> 3x - 1 = 5
=> 3x = 6
=> x = 2

8) x^3 / 32 + 48 = 50
=> x^3 / 32 = 2
=> x^3 = 64
=> x = 4

9) (5 + 3x) * 8^15 = 8^18
=> 5 + 3x = 8^(18 - 15)
=> 5 + 3x = 8^3
=> 5 + 3x = 512
=> 3x = 507
=> x = 169

10) 4x^3 + 15 = 47
=> 4x^3 = 32
=> x^3 = 8
=> x = 2

11) 3 * (x - 15) - 3^2 = 12 * 2^3
=> 3 * (x - 15) - 9 = 12 * 8
=> 3 * (x - 15) = 96 + 9
=> 3 * (x - 15) = 105
=> x - 15 = 35
=> x = 50

12) 2^(x+2) + 2^x = 5 * 16
=> 2^x * 2^2 + 2^x = 80
=> 4 * 2^x + 2^x = 80
=> 5 * 2^x = 80
=> 2^x = 16
=> x = 4

13) 2^(x+7) = 2^2 * 16 + 192
=> 2^(x+7) = 32 + 192
=> 2^(x+7) = 224
=> x + 7 = log2(224)
=> x = log2(224) - 7

14) 3^2 * (2x - 1) + 6 = 15
=> 9 * (2x - 1) + 6 = 15
=> 18x - 9 + 6 = 15
=> 18x - 3 = 15
=> 18x = 18
=> x = 1

15) 10 + 2x = 4^5 / 4^3
=> 10 + 2x = 1024 / 64
=> 10 + 2x = 16
=> 2x = 6
=> x = 3

Timi · Answer

Bài 4:
1) 2^x = 32
   => x = log2(32)
   => x = 5

2) 6x^3 - 8 = 40
   => 6x^3 = 48
   => x^3 = 8
   => x = 2

3) 3 / x^3 - 67 = 5^3
   => 3 / x^3 = 125 + 67
   => 3 / x^3 = 192
   => x^3 = 3 / 192
   => x = (3 / 192)^(1/3)

4) 4 * 2^x - 3 = 125
   => 4 * 2^x = 128
   => 2^x = 32
   => x = log2(32)
   => x = 5

5) 49 * 7^x = 2401
   => 7^2 * 7^x = 7^4
   => 7^(2 + x) = 7^4
   => 2 + x = 4
   => x = 2

6) 2 * (2^(3x-1) - 1) + 16 = 500
   => 2^(3x-1) - 1 = (500 - 16) / 2
   => 2^(3x-1) - 1 = 242
   => 2^(3x-1) = 243
   => 3x - 1 = log2(243)
   => 3x - 1 = 5
   => 3x = 6
   => x = 2

7) (3x-1)^3 = 125
   => 3x - 1 = 5
   => 3x = 6
   => x = 2

8) x^3 / 32 + 48 = 50
   => x^3 / 32 = 2
   => x^3 = 64
   => x = 4

9) (5 + 3x) * 8^15 = 8^18
   => 5 + 3x = 8^(18 - 15)
   => 5 + 3x = 8^3
   => 5 + 3x = 512
   => 3x = 507
   => x = 169

10) 4x^3 + 15 = 47
    => 4x^3 = 32
    => x^3 = 8
    => x = 2

11) 3 * (x - 15) - 3^2 = 12 * 2^3
    => 3 * (x - 15) - 9 = 12 * 8
    => 3 * (x - 15) = 96 + 9
    => 3 * (x - 15) = 105
    => x - 15 = 35
    => x = 50

12) 2^(x+2) + 2^x = 5 * 16
    => 2^x * 2^2 + 2^x = 80
    => 4 * 2^x + 2^x = 80
    => 5 * 2^x = 80
    => 2^x = 16
    => x = 4

13) 2^(x+7) = 2^2 * 16 + 192
    => 2^(x+7) = 32 + 192
    => 2^(x+7) = 224
    => x + 7 = log2(224)
    => x + 7 = 7
    => x = 0

14) 3^2 * (2x - 1) + 6 = 15
    => 9 * (2x - 1) + 6 = 15
    => 18x - 9 + 6 = 15
    => 18x - 3 = 15
    => 18x = 18
    => x = 1

15) 10 + 2x = 4^5 / 4^3
    => 10 + 2x = 1024 / 64
    => 10 + 2x = 16
    => 2x = 6
    => x = 3