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irga5000 [103]
3 years ago
9

Please help asap. 55 points

Mathematics
2 answers:
telo118 [61]3 years ago
8 0
k^2+kf-2f^2
=k^2+kf-f^2-f^2
=k^2-f^2+kf-f^2
=(k+f)(k-f)+f(k-f)
=(k+2f)(k-f)
B
atroni [7]3 years ago
5 0
The answer would be B. Using the foil method to check, the two k's equal k^2, then the k and -f would equal -fk, plus the 2fk would equal a positive fk. Lastly, the 2f and -f would equal -2f^2.
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