Question

please someone solve this resolve into factors​

Answer 1

$2a {}^{2} + 5a + 2 \\ \\ = 2a {}^{2} + 4a + 1a + 2 \\ \\ = 2a(a + 2) + 1(a + 2) \\ \\ = (2a + 1)(a + 2)$

Answer 2

Product of coefficient of x^2 and constant term= 2*2= 4

2a^2 + 5a + 2=0

2a^2 + 4a + a +2 = 0

2a(a+2) +1(a+2) = 0

(2a+1) (a+2) = 0

a = -1/2 and -2