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OpenStudy (anonymous):
multiply (x + 7)² x^2 + 49?
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OpenStudy (anonymous):
am I correct?
OpenStudy (imtiaz7):
by using formula: (a+b)^2= a^2+2ab+b^2 so it will be: x^2+14x+49 here a=x and b=7
OpenStudy (anonymous):
are you sure?
OpenStudy (imtiaz7):
yes!
OpenStudy (anonymous):
(x+7)^2=x^2+14x+49
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OpenStudy (triciaal):
@dontre no, |you forgot the middle term dw:1424843894990:dw|
OpenStudy (triciaal):
|dw:1424844055048:dw|
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