(7-w)(5w+2)=0

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Solution for (7-w)(5w+2)=0 equation:


Simplifying
(7 + -1w)(5w + 2) = 0

Reorder the terms:
(7 + -1w)(2 + 5w) = 0

Multiply (7 + -1w) * (2 + 5w)
(7(2 + 5w) + -1w * (2 + 5w)) = 0
((2 * 7 + 5w * 7) + -1w * (2 + 5w)) = 0
((14 + 35w) + -1w * (2 + 5w)) = 0
(14 + 35w + (2 * -1w + 5w * -1w)) = 0
(14 + 35w + (-2w + -5w2)) = 0

Combine like terms: 35w + -2w = 33w
(14 + 33w + -5w2) = 0

Solving
14 + 33w + -5w2 = 0

Solving for variable 'w'.

Factor a trinomial.
(7 + -1w)(2 + 5w) = 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 + 5w)' equal to zero and attempt to solve: Simplifying 2 + 5w = 0 Solving 2 + 5w = 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 + 5w = 0 + -2 Combine like terms: 2 + -2 = 0 0 + 5w = 0 + -2 5w = 0 + -2 Combine like terms: 0 + -2 = -2 5w = -2 Divide each side by '5'. w = -0.4 Simplifying w = -0.4

Solution

w = {7, -0.4}

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