Posted by Hannah on Thursday, September 9, 2010 at 5:08pm.
Factor completely. If the polynomial cannot be factored say it is prime.
1) 15x^3 + 19x^2 + 6x
A) (3x^2 +2)(5x+3)
I chose E) Prime.
2) 2x^2 - 14x - 6x + 42
I know that this is 2x^2 - 20 + 42 when you combine the 14x and 6x so I chose answer E) Prime but I am not sure for this one.
Math(Please check answers) - Reiny, Thursday, September 9, 2010 at 6:16pm
1. Why don't you expand A) and see what you get?
2x^2 - 14x - 6x + 42
= 2x(x-7) - 6(x-7)
Math(Please check answers) - Dennis, Thursday, June 4, 2015 at 12:21pm
Just like what Reiny said, just try and expand it yourself. See what you can find! :)
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