Question

5x^2+19x+12 factor the polynomial

Answer 1

( x − 3 )( 5x − 4 )

Explanation:

Answer 2

Δ = 19^2 - 4*5*12 => Δ = 121 =>
`√(delta)` = 11;
x1 = -0.8; x2 = -3;
5x^2+19x+12 = 5( x + 0.8)( x + 3) = ( 5x + 4)( x + 3);