What are the solutions to the equation -b^3+3b+2=0 ?

The solutions to the equation -b^3+3b+2=0 are b=-1,b=2

Find the zeros of -b^3+3b+2=0

The zeros of -b^3+3b+2=0 are b=-1,b=2

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- b^{3} + 3 b + 2 = 0

b = - 1, b = 2

Solution steps

- b^{3} + 3 b + 2 = 0

Factor

- b^{3} + 3 b + 2 : - (b + 1)^{2} (b - 2)

- (b + 1)^{2} (b - 2) = 0

Using the Zero Factor Principle:

ab = 0

then

a = 0

b = 0

b + 1 = 0 or b - 2 = 0

Solve

b + 1 = 0 : b = - 1

Solve

b - 2 = 0 : b = 2

The solutions are

b = - 1, b = 2

7 x^{3} = 28 x

x^{2} (x - 3) = - 4

x^{3} - 9 x^{2} + 9 x - 81 = 0

x^{4} = - 2

x^{4} = 10

What are the solutions to the equation -b^3+3b+2=0 ?
The solutions to the equation -b^3+3b+2=0 are b=-1,b=2
Find the zeros of -b^3+3b+2=0
The zeros of -b^3+3b+2=0 are b=-1,b=2