Combine like terms for
(3x²+2x²-5x+7)+(4x²+2x-3)

Find the x-intercept and y-intercept of the line. 3x + 5y = −15

Iwill make brain if you me correctly fill this out needs due today pls and send it back to me (click the link and you will get it)

Which of the following represents a number squared is equal to twenty more than nine times that number ? a) x squared = 9x + 20 b) x squared = 20x + 9 c) x squared > 9 + 20x d) x squared = 9 + x + 20