Mathematics
10 Online
OpenStudy (anonymous):
(a + 3)(a - 2)
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OpenStudy (anonymous):
Do you want to expand this?
OpenStudy (anonymous):
can you help me solve this problem?
OpenStudy (unklerhaukus):
(a + 3)(a - 2) = a(a - 2)+3(a - 2) = ...
OpenStudy (anonymous):
i dont understand these type of math problems.
OpenStudy (unklerhaukus):
a(a - 2)= a×a-2×a
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OpenStudy (ryan123345):
Do you know how to FOIL or what that means?
OpenStudy (anonymous):
yes !
OpenStudy (ryan123345):
Ok so the acronym is
1) First
2) Outer
3) Inner
4) Last
OpenStudy (ryan123345):
so first we multiply the first variables or numbers together, so what would we multiply first?
OpenStudy (anonymous):
3 and 2 ?
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OpenStudy (ryan123345):
no, that is the last numbers. What are the first numbers?
OpenStudy (anonymous):
a & 3
OpenStudy (ryan123345):
no, the ''A'' was right so thats the first variable for the first parenthesis whats the first variable or number for the second?
OpenStudy (anonymous):
a.
OpenStudy (ryan123345):
good, so whats a x a ?
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OpenStudy (anonymous):
a sqaure
OpenStudy (ryan123345):
\[a^2\]good
OpenStudy (ryan123345):
so now what are the outers which would be |dw:1366898606835:dw|
OpenStudy (anonymous):
2 & 3 ?
OpenStudy (ryan123345):
no those are the lasts. I even gave you a pic which ones they were
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OpenStudy (anonymous):
a & a
OpenStudy (ryan123345):
no. those are the first remember? lol
OpenStudy (anonymous):
lol , well then is it gonna be a square ? help me out here lol
OpenStudy (ryan123345):
|dw:1366898787352:dw|