Which binomial is a factor of the quadratic below?

4x2 + 21x + 5
A. x + 1
B. 4x + 5
C. 2x + 5
D. 4x + 1
Which of the following is the factorization of the quadratic below?

x2 - 7x + 10
A. (x - 5)(x - 2)
B. (x + 5)(x + 2)
C. (x - 5)(x + 2)
D. (x - 10)(x - 1)

Question

Which binomial is a factor of the quadratic below?

4x2 + 21x + 5
	A.  	x + 1
	B.  	4x + 5
	C.  	2x + 5
	D.  	4x + 1
Which of the following is the factorization of the quadratic below?

x2 - 7x + 10
	A.  	(x - 5)(x - 2)
	B.  	(x + 5)(x + 2)
	C.  	(x - 5)(x + 2)
	D.  	(x - 10)(x - 1)

anonymous · Answer

For the first one you should quickly use synthetic division to check which one of those is a factor. Do you know what synthetic division is?  Also for the second one you should multiply it out and see which it resembles.