Answer: 10n^2 - 10
Step-by-step explanation:
(5n - 5)(2+2n) becomes (5n-5)(2n+2)
= (5n)(2n) + (5n)(2) + (-5)(2n) + (-5)(2)
= 10n^2 - 10
Answer:
#8. M = -8/9
#9. M = 3/5
x=-3
2x+7=4+x
2x-x+7=4
x+7=4
x=4-7
i think is is c but I not sure.
c=0
