Answer:
4/x^7
Step-by-step explanation:
4x^-7 = 4* x^-7 = 4* 1/x^7 = 4/x^7
X=2,-6
3-(-3) / -15-(-5)
= 3+3/-15+5
=6 /-10
= -3 /5
Hope it helps You
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