Question

Which of the following value pairs can be used as m and n to factor the expression 4x^2-8x+3? A) 2,6 B) -2,6 C) 2,-6 D) -2,-6

Answer 1

$4 x^{2} - 8x +3 = 4 x^{2} -2x -6x +3 = 2x(2x -1) +3(2x-1)$
$= (2x-1)(2x +3)$

Hence, the value pair that can be used to factor out the equation is D: -2,-6