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OpenStudy (anonymous):
help Simplify: (3b + 7)(2b - 5).
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OpenStudy (saifoo.khan):
Try it, Use FOIL
OpenStudy (anonymous):
FOIL
OpenStudy (anonymous):
ok si it would be 6b^2-b-15?
OpenStudy (saifoo.khan):
Last term is incorrect!
OpenStudy (saifoo.khan):
LOl. no not a nice job about last term.
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OpenStudy (anonymous):
-35 is the last term then
OpenStudy (saifoo.khan):
yay! Nice job now.
OpenStudy (anonymous):
no, here try starting with this (3b + 7)(2b - 5) 3b*2b + 2b(-5) + 7*2b + 7(-5)
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