August 2018 1 32 Report
Opera y simplifica:
a)(x-3) (x+3)+(x-4) (x+4)-25
b)(x+1) (x-3) + (x-2) (x-3)-(x^2-3x-1)
c) 2x(x+3)-2(3x+5)+x
d)(x+1)^2 -3x-3
e)(2x+1)^2-1-(x-1) (x+1)
f) x(x-3)+(x+4) (x-4)-(2-3x)
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