1.	Factor 2r3 + 8r2 - 10r completely.
		A.	2r(r2 + 4r - 5)
		B.	2r(r - 1)(r + 5)
		C.	2(r3 + 4r2 - 5r)
		D.	(2r - 1)(r + 5)
		Hint
	2.	Factor 3ty3 – 48ty.
		A.		B.	3ty(y + 4)(y – 4)
		C.		D.
		Hint
	3.	Factor 4x2 – 49.
		A.		B.	(2x + 7)(2x – 7)
		C.		D.
		Hint
	4.	Factor 4x2 – 5x – 6.
		A.		B.
		C.	(4x + 3)(x – 2)	D.
		Hint
	5.	Simplify: if
		A.		B.	Cannot be simplified further.
		C.		D.
		Hint