(w+7)*(w-2)=

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Solution for (w+7)*(w-2)= equation:


Simplifying
(w + 7)(w + -2) = 0

Reorder the terms:
(7 + w)(w + -2) = 0

Reorder the terms:
(7 + w)(-2 + w) = 0

Multiply (7 + w) * (-2 + w)
(7(-2 + w) + w(-2 + w)) = 0
((-2 * 7 + w * 7) + w(-2 + w)) = 0
((-14 + 7w) + w(-2 + w)) = 0
(-14 + 7w + (-2 * w + w * w)) = 0
(-14 + 7w + (-2w + w2)) = 0

Combine like terms: 7w + -2w = 5w
(-14 + 5w + w2) = 0

Solving
-14 + 5w + w2 = 0

Solving for variable 'w'.

Factor a trinomial.
(-7 + -1w)(2 + -1w) = 0

Subproblem 1

Set the factor '(-7 + -1w)' equal to zero and attempt to solve: Simplifying -7 + -1w = 0 Solving -7 + -1w = 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 + -1w = 0 + 7 Combine like terms: -7 + 7 = 0 0 + -1w = 0 + 7 -1w = 0 + 7 Combine like terms: 0 + 7 = 7 -1w = 7 Divide each side by '-1'. w = -7 Simplifying w = -7

Subproblem 2

Set the factor '(2 + -1w)' equal to zero and attempt to solve: Simplifying 2 + -1w = 0 Solving 2 + -1w = 0 Move all terms containing w to the left, all other terms to the right. Add '-2' to each side of the equation. 2 + -2 + -1w = 0 + -2 Combine like terms: 2 + -2 = 0 0 + -1w = 0 + -2 -1w = 0 + -2 Combine like terms: 0 + -2 = -2 -1w = -2 Divide each side by '-1'. w = 2 Simplifying w = 2

Solution

w = {-7, 2}

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