Answer:
Step-by-step explanation:
2*50+30*7=100+210=310mm2
well first of you gotta follow me on instagram 16k.victor
second i think its 140
Answer: -2x + 5x^2
3x + 6x^2 - 5x - x^2 = x(3-5) + x^2(6-1) = -2x + 5x^2
the answer is the 3rd opiton
