Posted by
Tawny on
.
How do I solve:
9x + 2x to the third power +8x 12x to the third power

Math 
drwls,
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,
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