Thursday, February 3, 2011 at 5:29pm.
*** it is supposed to be 5x(to the power of two) and 3x(to the power of two)
Just expand it using FOIL
Your first line will have 4 terms, you can add up the two middle terms.
(5x^2 - 4x)(3x^2 + 2x)
Use FOIL to expand
-8x^2 - 2x^3 + 15x^4
15x^4 - 2x^3 - 8x^2
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