Asked by ervin
factor the expression given below 9x^2-16
Answers
Answered by
MathMate
Try using the standard form:
a^2-b^2=(a+b)(a-b)
and noting that
9x^2-16 = (3x)^2 - 4^2
a^2-b^2=(a+b)(a-b)
and noting that
9x^2-16 = (3x)^2 - 4^2
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