20 didn't do it for this one.
Answer: -2x + 5x^2
Step-by-step explanation:
3x + 6x^2 - 5x - x^2 = x(3-5) + x^2(6-1) = -2x + 5x^2
Answer:
8
Step-by-step explanation:
you have to work out 8 times 10 witch is 80 and then you do 54 take waya 80 divided by 2
