quadratic
-4x2 + 6x + 40 = 0 ∴ -2x2 + 3x + 20 = 0 ∴ -2x2 - 8x + 5x + 20 = 0 ∴ -2x(x + 4) + 5(x + 4) = 0 ∴ (5 - 2x)(x + 4) = 0 ∴ x ∈ {5/2, -4}
(x + 2)(x^2+4)
X - 4
A quadratic polynomial.
A Quadratic statement
quadratic
Not factorable
(2x + 1)(x + 4)
6x(3x2 - x + 4)
x2 + 6x + 8 = (x + 4)(x + 2)
2x2 - 5x + 12 does not factor. 2x2 - 5x - 12 factors into (2x + 3)(x - 4) 2x2 + 5x - 12 factors into (2x - 3)(x + 4)
-4x2 + 6x + 40 = 0 ∴ -2x2 + 3x + 20 = 0 ∴ -2x2 - 8x + 5x + 20 = 0 ∴ -2x(x + 4) + 5(x + 4) = 0 ∴ (5 - 2x)(x + 4) = 0 ∴ x ∈ {5/2, -4}
x2 + 6x + 8 =(x + 2)(x +4)
(x + 2)(x^2+4)
2(3x^2 + 6x + 2)
X - 4