Simplify. (k7)3 A) k-10 B) k4 C) k10 D) k21
2 answers:
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Answer:
Step-by-step explanation:
1) find two factors of c that sum up to -2.
2) 5 and -7 are factors of -35 that sum up to -2.
3) (x+5)(x-7)
4) x+5= 0, x= -5
5) x-7= 0, x= 7
4) the two solutions are -5 and 7.
