What is the product of 4xy and y^2+2x

Find the sum of 4x^{2} -4+6 and -7^{2} +3x+1

The multiplicative property of equality states that for real numbers a, b, c, and d, if a = b and c = d, then ac = bd. true false

Xy x xy if a and b are positive integers such that a*b=9 and b*a=72 what is the value of a/b