4(x^2 + 2x - 5)
4x2-36x+81 (2x-9)(2x-9)
The quadratic 4x2+24x+11 = (2x+1)(2x+11)
4x2+20x+25 (2x+5)^2
(2x - 5)(2x - 5)
(2x + 3)(2x - 1)
(2x - 1)(2x + 5)
It is: 2x(2x+11)
(2x + 3)(2x + 3)
(2x + 1)(2x + 1) or (2x + 1)2
4x2 - 36x + 81 = 4x2 - 18x - 18x +81 = 2x(2x - 9) - 9(2x - 9) = (2x - 9)2
2(2x^2 + 2x - 5)