I am pretty sure it is 30. Hope it helps!!
Answer:
a
Step-by-step explanation:
just did this last period
Answer:
9x^2-3x+4
Step-by-step explanation:
(3x^2+2x^2-5x+7)+(4x^2+2x-3)
5x^2-5x+7+4x^2+2x-3
5x^2+4x^2-5x+2x+7-3
9x^2-3x+7-3
9x^2-3x+4
Step-by-step explanation:
y−x2+2x=−4y-x2+2x=-4 , y+x=2
