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Algebra 20 Online
OpenStudy (anonymous):

Choose the correct simplification of the expression (2x - 6)(3x2 - 3x - 6). 6x3 - 24x2 + 6x + 36 6x3 - 24x2 + 6x - 36 6x3 + 24x2 - 6x + 36 6x3 - 24x2 + 6x + 12

OpenStudy (tkhunny):

Have you considered multiplying them a term at a time, just like regular multiplication?

OpenStudy (anonymous):

no

OpenStudy (tkhunny):

The highest degree is 3, (2x)(3x^2) = 6x^3 -- That eliminates nothing. The constant term is (-6)(-6) = +36 -- That eliminates the 2nd and the 4th. Do the rest!

OpenStudy (anonymous):

so is it A

OpenStudy (anonymous):

@tkhunny

OpenStudy (tkhunny):

...or C. Prove it, don't guess.

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