SOLUTION: -2x=-2x²+24

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Question 520457: -2x=-2x²+24
Answer by oberobic(2304) About Me  (Show Source):
You can put this solution on YOUR website!
+-2x+=+-2x%5E2+%2B24+
add 2x^2 to both sides
+2x%5E2+-2x+=+24+
subtract 24 from both sides
+2x%5E2+-2x+-24+=+0+
divide by 2
+x%5E2+-x+-12+=+0+
factor
+%28x%2B3%29%28x-4%29+=+0+
check factoring with FOIL
+x%5E2+-4x+%2B3x+-12+=+x%5E2+-x+-12+
so
x = -3 or 4
.
Graph of x^2-x-12
.
+graph%28500%2C500%2C-5%2C5%2C-15%2C15%2Cx%5E2-x-12%29+