Which expression is equivalent to (5z^2+3z+2)^2

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.

Find the center and the radius of the circle with the equation: x^2-2x+y^2+4y+1=0?

Me asap on # : explain how factoring a trinomial, ax^2+ bx+ c, when a does not equal 1 different from factoring a trinomial when a = 1.