4w^2+4w+1=81

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Solution for 4w^2+4w+1=81 equation:


Simplifying
4w2 + 4w + 1 = 81

Reorder the terms:
1 + 4w + 4w2 = 81

Solving
1 + 4w + 4w2 = 81

Solving for variable 'w'.

Reorder the terms:
1 + -81 + 4w + 4w2 = 81 + -81

Combine like terms: 1 + -81 = -80
-80 + 4w + 4w2 = 81 + -81

Combine like terms: 81 + -81 = 0
-80 + 4w + 4w2 = 0

Factor out the Greatest Common Factor (GCF), '4'.
4(-20 + w + w2) = 0

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

Ignore the factor 4.

Subproblem 1

Set the factor '(-5 + -1w)' equal to zero and attempt to solve: Simplifying -5 + -1w = 0 Solving -5 + -1w = 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 + -1w = 0 + 5 Combine like terms: -5 + 5 = 0 0 + -1w = 0 + 5 -1w = 0 + 5 Combine like terms: 0 + 5 = 5 -1w = 5 Divide each side by '-1'. w = -5 Simplifying w = -5

Subproblem 2

Set the factor '(4 + -1w)' equal to zero and attempt to solve: Simplifying 4 + -1w = 0 Solving 4 + -1w = 0 Move all terms containing w to the left, all other terms to the right. Add '-4' to each side of the equation. 4 + -4 + -1w = 0 + -4 Combine like terms: 4 + -4 = 0 0 + -1w = 0 + -4 -1w = 0 + -4 Combine like terms: 0 + -4 = -4 -1w = -4 Divide each side by '-1'. w = 4 Simplifying w = 4

Solution

w = {-5, 4}

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