Evaluate the following expression using the values given:

find x3 − 2y2 − 3x3 + z4 if x = 3, y = 5, and z = −3

In triangles abc and wxy, a=w and b=x which of the following must be true to prove abc=wxy by the aas theorem? a.ab=bc b.bc=xy c.ab=wx d.