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

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Solution for (2w-7)(w+2)=0 equation:


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

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

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

Multiply (-7 + 2w) * (2 + w)
(-7(2 + w) + 2w * (2 + w)) = 0
((2 * -7 + w * -7) + 2w * (2 + w)) = 0
((-14 + -7w) + 2w * (2 + w)) = 0
(-14 + -7w + (2 * 2w + w * 2w)) = 0
(-14 + -7w + (4w + 2w2)) = 0

Combine like terms: -7w + 4w = -3w
(-14 + -3w + 2w2) = 0

Solving
-14 + -3w + 2w2 = 0

Solving for variable 'w'.

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

Subproblem 1

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

Subproblem 2

Set the factor '(7 + -2w)' equal to zero and attempt to solve: Simplifying 7 + -2w = 0 Solving 7 + -2w = 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 + -2w = 0 + -7 Combine like terms: 7 + -7 = 0 0 + -2w = 0 + -7 -2w = 0 + -7 Combine like terms: 0 + -7 = -7 -2w = -7 Divide each side by '-2'. w = 3.5 Simplifying w = 3.5

Solution

w = {-2, 3.5}

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