-2x2 + 9x - 12 = 0Then apply the quadratic formula.
12
2X2+5x-12 4+5x-12 -8+5x 5x-8
15,000 to the third power that equals pi plus 12 would make it the square root of 7
2x2 + 11x + 12 = 2x2 + 3x + 8x + 12 = x*(2x + 3) + 4*(2x + 3) = (2x + 3)*(x + 4)
-2x2 + 9x - 12 = 0Then apply the quadratic formula.
12
2x2 - 5x + 12 does not factor. 2x2 - 5x - 12 factors into (2x + 3)(x - 4) 2x2 + 5x - 12 factors into (2x - 3)(x + 4)
2X2+5x-12 4+5x-12 -8+5x 5x-8
15,000 to the third power that equals pi plus 12 would make it the square root of 7
2x2 + 11x + 12 = 2x2 + 3x + 8x + 12 = x*(2x + 3) + 4*(2x + 3) = (2x + 3)*(x + 4)
A rectangle has 2 pairs of equal sides, so it would be 2X2+2X4=12
(2x - 3)(x - 12)
(2 x 3) + (2 x 2) - 12 = -2
2x2 - 72 would be factored into (2x - 12)(x + 6) or (2x + 12)(x - 6) To double check, multiply each pair: (2x - 12)(x + 6) = 2x2 + 12x - 12x - 72 = 2x2 - 72 (2x + 12)(x - 6) = 2x2 - 12x + 12 x - 72 = 2x2 - 72
2x3 + 8x2 + 3x + 12 = (2x3 + 8x2) + (3x + 12) = 2x2(x + 4) + 3(x + 4) = (x + 4)(2x2 + 3) Since you have asked this question I am assuming that you are not yet at a level where you might want (2x2 + 3) factorised into its imaginary factors.
4x2 + 14x + 12 = 2(2x2 + 7x + 6) = 2(2x + 3)(x + 2)