Answer:18
Step-by-step explanation:4(-3) = -12, and 40-12=18
The answer is D. The easiest way to see this is by using the FOIL method.
First
Outside
Inside
Last. So the first is x2, the outside is -10x, the inside is -7x, and the last is 70. So it would be x2-17x+70
Answer: 53x^7
Step-by-step explanation:
Subtracting a negative is like adding.