Question

(2x + 1)(x+3) are the factors of
a) 2x + 3x + 1
b) 2x + 7x + 3
c) x + 3x + 1
d) None of these​

Answer 1

Answer:

B

Step-by-step explanation:

2x(x+3)+1(x+3) [Distributive property]

$2x {}^{2} + 6x + x + 3 \\ 2x {}^{2} + 7x + 3$

Answer 2

Answer:

(2x+1)(x+3)

2x*2+6x+x+3

2x*2+7x+3