Last one ... (w+6)^2=3(w+12)-w^2

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asked Sep 26, 2017 140k views

1 Answer

Heiberg · Answer 1 · 2017-09-30T22:22:13+0000

First, distribute on both sides.
w^2+6^2=3w+36-w^2
Simplify 6^2.
w^2+36=3w+36-w^2
Subtract w^2 from both sides.
36=3w+36
Subtract 36 from both sides.
0=3w
Divide both sides by 3.
0=w

Last one ... (w+6)^2=3(w+12)-w^2

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