BrainlyTruthKb43
BrainlyTruthKb43
03-10-2017
Mathematics
contestada
(X+3)(x-3) use foil method
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babydoll033003
babydoll033003
03-10-2017
(x+3)(x-3)
x*x=x^2
+3*-3=-9
3x+-3x=0
answer is x^2-9
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