w^2-2w^2-8w-7=0

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Solution for w^2-2w^2-8w-7=0 equation:


Simplifying
w2 + -2w2 + -8w + -7 = 0

Reorder the terms:
-7 + -8w + w2 + -2w2 = 0

Combine like terms: w2 + -2w2 = -1w2
-7 + -8w + -1w2 = 0

Solving
-7 + -8w + -1w2 = 0

Solving for variable 'w'.

Factor out the Greatest Common Factor (GCF), '-1'.
-1(7 + 8w + w2) = 0

Factor a trinomial.
-1((7 + w)(1 + w)) = 0

Ignore the factor -1.

Subproblem 1

Set the factor '(7 + w)' equal to zero and attempt to solve: Simplifying 7 + w = 0 Solving 7 + w = 0 Move all terms containing w to the left, all other terms to the right. Add '-7' to each side of the equation. 7 + -7 + w = 0 + -7 Combine like terms: 7 + -7 = 0 0 + w = 0 + -7 w = 0 + -7 Combine like terms: 0 + -7 = -7 w = -7 Simplifying w = -7

Subproblem 2

Set the factor '(1 + w)' equal to zero and attempt to solve: Simplifying 1 + w = 0 Solving 1 + w = 0 Move all terms containing w to the left, all other terms to the right. Add '-1' to each side of the equation. 1 + -1 + w = 0 + -1 Combine like terms: 1 + -1 = 0 0 + w = 0 + -1 w = 0 + -1 Combine like terms: 0 + -1 = -1 w = -1 Simplifying w = -1

Solution

w = {-7, -1}

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