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OpenStudy (anonymous):
Expand and simplify the algebraic expression (x + 3)(x - 3) - (-x - 9)
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OpenStudy (anonymous):
@rishavraj
rishavraj (rishavraj):
so its like hmmm (a + b) (a - b) so it would be a^2 - b^2 and other terms
OpenStudy (anonymous):
okay thx
rishavraj (rishavraj):
yw....xD
OpenStudy (anonymous):
x2 - 9 + x + 9 = x2 + x
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