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Mathematics 9 Online
OpenStudy (anonymous):

yet another

OpenStudy (anonymous):

multiply \[(8+\sqrt{2})(4-3\sqrt{2})\]

OpenStudy (anonymous):

@amistre64 you seem to be the most help with me lol

OpenStudy (anonymous):

Do you know what multiplication is?

OpenStudy (anonymous):

yes i do i didnt know if i had to simplify in the parenthesis or not

OpenStudy (anonymous):

8+ sqr 2 times sqaur 2

OpenStudy (anonymous):

id say it be 8

OpenStudy (anonymous):

$$(a+b)(c+d)=a(c+d)+b(c+d)=ac+ad+bc+bd$$

OpenStudy (anonymous):

For any (a,b,c,d)

OpenStudy (amistre64):

the values presented are in their simplified form; so its just a run of the "FOIL" .... if that mnemonic device is of any help

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