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Mathematics 12 Online
OpenStudy (anonymous):

MEDAL/FAN4FAN Simplify the product. 5b(6b - 10) A. 11b - 10 B. 5b2 + 6b - 10 C. -b - 10 D. 30b2 - 50b I guessed D, check my answer?

OpenStudy (loser66):

yeap

OpenStudy (anonymous):

Help me with more? and thank youuuu

OpenStudy (anonymous):

Use the GCF of the terms to write the expression as the product of two factors with integer coefficients. -2x3 - 4x2 + 4x A. x(-2x2 - 4x + 4) B. -2x(x2 + 2x - 2) C. x(-2x2 + 2x - 2) D. -2x(-2x2 + 2x - 2) This one I don't exactly understand, these questions are all review.

OpenStudy (loser66):

where are you stuck?

OpenStudy (anonymous):

the very beginning, I learned this stuff years ago and I don't quite remember. I know that GCF means greatest common factor.. but that's about it haha

OpenStudy (loser66):

now, I rewrite your problem like : \[\huge(-2x)x^2 +(2x) (-2x) -(-2x)(2)\] do you understand how I can do it?

OpenStudy (anonymous):

I don't know where you're going with this, no.

OpenStudy (loser66):

ok, step: the first term: -2x^3 = -2x *x^2 got it?

OpenStudy (anonymous):

okay

OpenStudy (loser66):

the second term: -4x^2 = (-2x)(2x), got it?

OpenStudy (anonymous):

yup

OpenStudy (loser66):

and the last one: 4x = (-2)(-2x) , ok?

OpenStudy (anonymous):

okay

OpenStudy (anonymous):

so the answer is b, right?

OpenStudy (loser66):

yup

OpenStudy (anonymous):

thank you!

OpenStudy (loser66):

yw

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