Question

Solve 4x2 +16x +15=0 of using middle term splitting method.​

Answer 1

Step-by-step explanation:

$4x { }^{2} + 16x + 15 = 0 \\ 4 {x}^{2} + 10x + 6x + 15 = 0 \\ 2x(2x + 5) + 3(2x + 5) = 0 \\ (2x + 5)(2x + 3) = 0 \\ x = \frac{ - 5}{2} \: and \: x = \frac{ - 3}{2}$