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Mathematics 8 Online
OpenStudy (princeevee):

medal for answer in a pm please

OpenStudy (princeevee):

OpenStudy (princeevee):

@Directrix

OpenStudy (richardaperez):

"foil" method?

OpenStudy (princeevee):

yeah

OpenStudy (richardaperez):

I can help you through it

OpenStudy (anonymous):

yikes ! it says "simplify" it means "multiply" first take \(4x+2b\) and multiply each term by \(a\) then multiply each term in \(4x+2b\) by \(b\)

OpenStudy (anonymous):

oops i meant \(4a+2b\) so first compute \[(4x+2b)\times a\] then \[(4x+2b)\times (-b)\]

OpenStudy (princeevee):

6a and -6b

OpenStudy (princeevee):

look i can just get a pm of the answer it would be ok

OpenStudy (princeevee):

@richardaperez can you help me with 4 more?

OpenStudy (princeevee):

OpenStudy (princeevee):

@richardaperez

OpenStudy (richardaperez):

when the exponent is 2 , you start by just writing the term twice (4a-3)(4a-3)

OpenStudy (princeevee):

ok thanks a few more

OpenStudy (princeevee):

OpenStudy (princeevee):

@richardaperez

OpenStudy (richardaperez):

do the same thing.foil. multiply both terms in the first set by every term in the 2nd set. then combine like terms

OpenStudy (princeevee):

OpenStudy (princeevee):

@richardaperez

OpenStudy (richardaperez):

haha this one can be lengthy if youre foiling. im sure theres a faster way to do it but the way i know is the same as before. multiply each term in the first set of numbers individually by each number in the second set of numbers. then combine like terms

OpenStudy (richardaperez):

be careful with the signs you use. easy to get confused when multiplying negatives and positives

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