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Simplifying 2x(x + -3) + -1(x + -3)(x + -3) = 0 Reorder the terms: 2x(-3 + x) + -1(x + -3)(x + -3) = 0 (-3 * 2x + x * 2x) + -1(x + -3)(x + -3) = 0 (-6x + 2x2) + -1(x + -3)(x + -3) = 0 Reorder the terms: -6x + 2x2 + -1(-3 + x)(x + -3) = 0 Reorder the terms: -6x + 2x2 + -1(-3 + x)(-3 + x) = 0 Multiply (-3 + x) * (-3 + x) -6x + 2x2 + -1(-3(-3 + x) + x(-3 + x)) = 0 -6x + 2x2 + -1((-3 * -3 + x * -3) + x(-3 + x)) = 0 -6x + 2x2 + -1((9 + -3x) + x(-3 + x)) = 0 -6x + 2x2 + -1(9 + -3x + (-3 * x + x * x)) = 0 -6x + 2x2 + -1(9 + -3x + (-3x + x2)) = 0 Combine like terms: -3x + -3x = -6x -6x + 2x2 + -1(9 + -6x + x2) = 0 -6x + 2x2 + (9 * -1 + -6x * -1 + x2 * -1) = 0 -6x + 2x2 + (-9 + 6x + -1x2) = 0 Reorder the terms: -9 + -6x + 6x + 2x2 + -1x2 = 0 Combine like terms: -6x + 6x = 0 -9 + 0 + 2x2 + -1x2 = 0 -9 + 2x2 + -1x2 = 0 Combine like terms: 2x2 + -1x2 = 1x2 -9 + 1x2 = 0 Solving -9 + 1x2 = 0 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '9' to each side of the equation. -9 + 9 + 1x2 = 0 + 9 Combine like terms: -9 + 9 = 0 0 + 1x2 = 0 + 9 1x2 = 0 + 9 Combine like terms: 0 + 9 = 9 1x2 = 9 Divide each side by '1'. x2 = 9 Simplifying x2 = 9 Take the square root of each side: x = {-3, 3}
| 22+x=180 | | 7.1t-4.9=7.17 | | 7e^6x+2=8 | | 2x-80=60 | | 0.1+8.3=-0.3x+4.13 | | 0.6t=-90 | | -50.5+n=-55 | | 2/2=58/20 | | 1/64(x)^4-4=0 | | r=2m+2w | | 52=45+98/t | | x/2/5=16 | | 46=43+6/k | | 3.5t-2=4+4t | | 12.1+0.5p=0.9p+5.3 | | 68=58+n/18 | | 54=3f+6 | | 50+7k=99 | | 2(x+3)(x-4)=0 | | 43=18/a+14 | | 66=16j-78 | | 48=5v+33 | | 8=4+v/2 | | 38=5v-92 | | 46=17p-39 | | (2w-10)(2w-10)-5(2w-10)+6=0 | | 1/4x^2+8x | | 30/n+13=16 | | 45=34/g+43 | | (3x-1)(3x-1)=0 | | 5(0.4+0.3x)+0.4x=0.5(x+4) | | 2d+49=53 |