-x2 plus 12x plus 28 factorization?

Answer 1

That doesn't factor neatly. Applying the quadratic formula, we find two real solutions:-6 plus or minus 2 times the square root of 2

x = -3.1715728752538097

x = -8.82842712474619

Answer 2

Are you sure of the signs in the equation?

The discriminant of this quadratic is 122 - 4*1*28 = 32

So the roots are [-12 +/- sqrt(32)]/2 = -6 +/- 2sqrt(2)

So the factorisation is [x+6-2sqrt(2)] * [x+6+2sqrt(2)]

Answer 3

Factor 2x plus 12x plus 28 is (x - 3)(x - 9)

Answer 4

-((x + 2)(x - 14))

Answer 5

(x - 7)(x - 4)