What are the solutions to the equation 2x^3+3x^2-14x-15=0 ?

The solutions to the equation 2x^3+3x^2-14x-15=0 are x=-1,x= 5/2 ,x=-3

Find the zeros of 2x^3+3x^2-14x-15=0

The zeros of 2x^3+3x^2-14x-15=0 are x=-1,x= 5/2 ,x=-3

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2 x^{3} + 3 x^{2} - 14 x - 15 = 0

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

Decimal Notation

x = - 1, x = 2.5, x = - 3

Solution steps

2 x^{3} + 3 x^{2} - 14 x - 15 = 0

Factor

2 x^{3} + 3 x^{2} - 14 x - 15 : (x + 1) (2 x - 5) (x + 3)

(x + 1) (2 x - 5) (x + 3) = 0

Using the Zero Factor Principle:

ab = 0

then

a = 0

b = 0

x + 1 = 0 or 2 x - 5 = 0 or x + 3 = 0

Solve

x + 1 = 0 : x = - 1

Solve

2 x - 5 = 0 : x = \frac{5}{2}

Solve

x + 3 = 0 : x = - 3

The solutions are

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

x^{4} + 12 x^{2} + 36 = 0

2 x^{4} - 3 x^{3} + x - 10 = 0

6 x^{2} - 4 x^{3} = 0

z^{3} = (- 1 + 3 i)

x^{3} + 6 x^{2} - x - 30 = 0

What are the solutions to the equation 2x^3+3x^2-14x-15=0 ?
The solutions to the equation 2x^3+3x^2-14x-15=0 are x=-1,x= 5/2 ,x=-3
Find the zeros of 2x^3+3x^2-14x-15=0
The zeros of 2x^3+3x^2-14x-15=0 are x=-1,x= 5/2 ,x=-3