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OpenStudy (anonymous):
Factor completely: 16x2 − 81
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OpenStudy (anonymous):
-49 if the question is 16*2-81. The X confused me if it was a variable or a multiplication sign.
OpenStudy (anonymous):
16^2-81
Parth (parthkohli):
\[16x^2 - 81\]
Parth (parthkohli):
This is a difference of two perfect squares.
OpenStudy (anonymous):
Ah. my bad, sorry. :)
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Parth (parthkohli):
\[(a)^2 - (b)^2 = (a+b)(a-b)\]What is \(16x^2\) the square of?
OpenStudy (anonymous):
Solve the inequality: 7 − 4x > 35
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