0=2y^2+y-28

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Solution for 0=2y^2+y-28 equation:


Simplifying
0 = 2y2 + y + -28

Reorder the terms:
0 = -28 + y + 2y2

Solving
0 = -28 + y + 2y2

Solving for variable 'y'.

Combine like terms: 0 + 28 = 28
28 + -1y + -2y2 = -28 + y + 2y2 + 28 + -1y + -2y2

Reorder the terms:
28 + -1y + -2y2 = -28 + 28 + y + -1y + 2y2 + -2y2

Combine like terms: -28 + 28 = 0
28 + -1y + -2y2 = 0 + y + -1y + 2y2 + -2y2
28 + -1y + -2y2 = y + -1y + 2y2 + -2y2

Combine like terms: y + -1y = 0
28 + -1y + -2y2 = 0 + 2y2 + -2y2
28 + -1y + -2y2 = 2y2 + -2y2

Combine like terms: 2y2 + -2y2 = 0
28 + -1y + -2y2 = 0

Factor a trinomial.
(7 + -2y)(4 + y) = 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 '(4 + y)' equal to zero and attempt to solve: Simplifying 4 + y = 0 Solving 4 + y = 0 Move all terms containing y to the left, all other terms to the right. Add '-4' to each side of the equation. 4 + -4 + y = 0 + -4 Combine like terms: 4 + -4 = 0 0 + y = 0 + -4 y = 0 + -4 Combine like terms: 0 + -4 = -4 y = -4 Simplifying y = -4

Solution

y = {3.5, -4}

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