4y^2-28y=-49

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Solution for 4y^2-28y=-49 equation:


Simplifying
4y2 + -28y = -49

Reorder the terms:
-28y + 4y2 = -49

Solving
-28y + 4y2 = -49

Solving for variable 'y'.

Reorder the terms:
49 + -28y + 4y2 = -49 + 49

Combine like terms: -49 + 49 = 0
49 + -28y + 4y2 = 0

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

Subproblem 1

Set the factor '(7 + -2y)' equal to zero and attempt to solve: Simplifying 7 + -2y = 0 Solving 7 + -2y = 0 Move all terms containing y to the left, all other terms to the right. Add '-7' to each side of the equation. 7 + -7 + -2y = 0 + -7 Combine like terms: 7 + -7 = 0 0 + -2y = 0 + -7 -2y = 0 + -7 Combine like terms: 0 + -7 = -7 -2y = -7 Divide each side by '-2'. y = 3.5 Simplifying y = 3.5

Subproblem 2

Set the factor '(7 + -2y)' equal to zero and attempt to solve: Simplifying 7 + -2y = 0 Solving 7 + -2y = 0 Move all terms containing y to the left, all other terms to the right. Add '-7' to each side of the equation. 7 + -7 + -2y = 0 + -7 Combine like terms: 7 + -7 = 0 0 + -2y = 0 + -7 -2y = 0 + -7 Combine like terms: 0 + -7 = -7 -2y = -7 Divide each side by '-2'. y = 3.5 Simplifying y = 3.5

Solution

y = {3.5, 3.5}

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