Question

factorise x^3+7x^2+7x-15

Answer 1

Answer:

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Answer 2

Answer:

Simplifying

P(x) = x3 + -7x2 + 7x + 15

Multiply P * x

xP = x3 + -7x2 + 7x + 15

Reorder the terms:

xP = 15 + 7x + -7x2 + x3

Solving

xP = 15 + 7x + -7x2 + x3

Solving for variable 'x'.

Reorder the terms:

-15 + -7x + xP + 7x2 + -1x3 = 15 + 7x + -7x2 + x3 + -15 + -7x + 7x2 + -1x3

Reorder the terms:

-15 + -7x + xP + 7x2 + -1x3 = 15 + -15 + 7x + -7x + -7x2 + 7x2 + x3 + -1x3

Combine like terms: 15 + -15 = 0

-15 + -7x + xP + 7x2 + -1x3 = 0 + 7x + -7x + -7x2 + 7x2 + x3 + -1x3

-15 + -7x + xP + 7x2 + -1x3 = 7x + -7x + -7x2 + 7x2 + x3 + -1x3

Combine like terms: 7x + -7x = 0

-15 + -7x + xP + 7x2 + -1x3 = 0 + -7x2 + 7x2 + x3 + -1x3

-15 + -7x + xP + 7x2 + -1x3 = -7x2 + 7x2 + x3 + -1x3

Combine like terms: -7x2 + 7x2 = 0

-15 + -7x + xP + 7x2 + -1x3 = 0 + x3 + -1x3

-15 + -7x + xP + 7x2 + -1x3 = x3 + -1x3

Combine like terms: x3 + -1x3 = 0

-15 + -7x + xP + 7x2 + -1x3 = 0

The solution to this equation could not be determined.

Step-by-step explanation: