(y+2)(y+7)=y^2+32

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Solution for (y+2)(y+7)=y^2+32 equation:


Simplifying
(y + 2)(y + 7) = y2 + 32

Reorder the terms:
(2 + y)(y + 7) = y2 + 32

Reorder the terms:
(2 + y)(7 + y) = y2 + 32

Multiply (2 + y) * (7 + y)
(2(7 + y) + y(7 + y)) = y2 + 32
((7 * 2 + y * 2) + y(7 + y)) = y2 + 32
((14 + 2y) + y(7 + y)) = y2 + 32
(14 + 2y + (7 * y + y * y)) = y2 + 32
(14 + 2y + (7y + y2)) = y2 + 32

Combine like terms: 2y + 7y = 9y
(14 + 9y + y2) = y2 + 32

Reorder the terms:
14 + 9y + y2 = 32 + y2

Add '-1y2' to each side of the equation.
14 + 9y + y2 + -1y2 = 32 + y2 + -1y2

Combine like terms: y2 + -1y2 = 0
14 + 9y + 0 = 32 + y2 + -1y2
14 + 9y = 32 + y2 + -1y2

Combine like terms: y2 + -1y2 = 0
14 + 9y = 32 + 0
14 + 9y = 32

Solving
14 + 9y = 32

Solving for variable 'y'.

Move all terms containing y to the left, all other terms to the right.

Add '-14' to each side of the equation.
14 + -14 + 9y = 32 + -14

Combine like terms: 14 + -14 = 0
0 + 9y = 32 + -14
9y = 32 + -14

Combine like terms: 32 + -14 = 18
9y = 18

Divide each side by '9'.
y = 2

Simplifying
y = 2

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