What is the answer to 7-2(3b)^{4/3}=-155 ?

The answer to 7-2(3b)^{4/3}=-155 is b=9,b=-9

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7-2(3b)^{4/3}=-155

7 - 2 (3 b)^{\frac{4}{3}} = - 155

b = 9, b = - 9

Solution steps

7 - 2 (3 b)^{\frac{4}{3}} = - 155

Move

7

to the right side

- 2 (3 b)^{\frac{4}{3}} = - 162

Divide both sides by

- 2

(3 b)^{\frac{4}{3}} = 81

Take both sides of the equation to the power of

3 : 81 b^{4} = 531441

81 b^{4} = 531441

Solve

81 b^{4} = 531441 : b = 9, b = - 9

b = 9, b = - 9

Verify Solutions:

b = 9

True

, b = - 9

True

The solutions are

b = 9, b = - 9

3 + x^{\frac{1}{3}} = 13

x + 5 = x (x + 5)

4 x + 4 x = 18

- \frac{2}{3} x^{\frac{1}{5}} = - 2

3 + 5 x - 6 = 2 x

What is the answer to 7-2(3b)^{4/3}=-155 ?
The answer to 7-2(3b)^{4/3}=-155 is b=9,b=-9
Solve for b: 7-2(3b)^{4/3}=-155
The solution is b=9,b=-9