4w*w+21w=-5

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Solution for 4w*w+21w=-5 equation:


Simplifying
4w * w + 21w = -5

Multiply w * w
4w2 + 21w = -5

Reorder the terms:
21w + 4w2 = -5

Solving
21w + 4w2 = -5

Solving for variable 'w'.

Reorder the terms:
5 + 21w + 4w2 = -5 + 5

Combine like terms: -5 + 5 = 0
5 + 21w + 4w2 = 0

Factor a trinomial.
(5 + w)(1 + 4w) = 0

Subproblem 1

Set the factor '(5 + w)' equal to zero and attempt to solve: Simplifying 5 + w = 0 Solving 5 + w = 0 Move all terms containing w to the left, all other terms to the right. Add '-5' to each side of the equation. 5 + -5 + w = 0 + -5 Combine like terms: 5 + -5 = 0 0 + w = 0 + -5 w = 0 + -5 Combine like terms: 0 + -5 = -5 w = -5 Simplifying w = -5

Subproblem 2

Set the factor '(1 + 4w)' equal to zero and attempt to solve: Simplifying 1 + 4w = 0 Solving 1 + 4w = 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 + 4w = 0 + -1 Combine like terms: 1 + -1 = 0 0 + 4w = 0 + -1 4w = 0 + -1 Combine like terms: 0 + -1 = -1 4w = -1 Divide each side by '4'. w = -0.25 Simplifying w = -0.25

Solution

w = {-5, -0.25}

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