4w^2=25w+21

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Solution for 4w^2=25w+21 equation:


Simplifying
4w2 = 25w + 21

Reorder the terms:
4w2 = 21 + 25w

Solving
4w2 = 21 + 25w

Solving for variable 'w'.

Reorder the terms:
-21 + -25w + 4w2 = 21 + 25w + -21 + -25w

Reorder the terms:
-21 + -25w + 4w2 = 21 + -21 + 25w + -25w

Combine like terms: 21 + -21 = 0
-21 + -25w + 4w2 = 0 + 25w + -25w
-21 + -25w + 4w2 = 25w + -25w

Combine like terms: 25w + -25w = 0
-21 + -25w + 4w2 = 0

Factor a trinomial.
(-3 + -4w)(7 + -1w) = 0

Subproblem 1

Set the factor '(-3 + -4w)' equal to zero and attempt to solve: Simplifying -3 + -4w = 0 Solving -3 + -4w = 0 Move all terms containing w to the left, all other terms to the right. Add '3' to each side of the equation. -3 + 3 + -4w = 0 + 3 Combine like terms: -3 + 3 = 0 0 + -4w = 0 + 3 -4w = 0 + 3 Combine like terms: 0 + 3 = 3 -4w = 3 Divide each side by '-4'. w = -0.75 Simplifying w = -0.75

Subproblem 2

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

Solution

w = {-0.75, 7}

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