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Mathematics
Downpour17:

I really need help with this Simplify: (2x + y)(4x2 – 2xy + y2) If x=2 and y= 3

MrMudd183:

so what i would do is substitute x for 2 and y for 3 in each spot. after you do that it would look like (2(2)+3)(4(2)2-2(2)(3)+(3)2)

Downpour17:

would it be something like this? 8x3 + y3.

Tommythheanswer:

yes

MrMudd183:

(4+3)(16-10+6) is what i got after i substituted (7)(12) after i did what's in the parenthasis *sorry for bad spelling* then you should end up with 84 as your final result

MrMudd183:

if my math is correct

Downpour17:

Ok i get that thank you

MrMudd183:

you're welcome :)

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