Posted by Tawny on Saturday, October 16, 2010 at 8:27pm.
How do I solve:
9x + 2x to the third power +8x 12x to the third power

Math  drwls, Saturday, October 16, 2010 at 8:58pm
Isn't there suppsed to be an "=" sign in there somewhere? If so, where?
You can't "solve" it if it isn't an equation.

Math  Bosnian, Sunday, October 17, 2010 at 12:10am
9x+2x=7x
(7x)^3=(7)^3 *x^3=343x^3
8x12x=4x
(4x)^3=(4)^3 *x^3=64x^3
343x^3 +(64x^3)=
343x^364x^3= 407x^3
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