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Simplifying x(2x + -8) = (2x + 3)(x + -5) Reorder the terms: x(-8 + 2x) = (2x + 3)(x + -5) (-8 * x + 2x * x) = (2x + 3)(x + -5) (-8x + 2x2) = (2x + 3)(x + -5) Reorder the terms: -8x + 2x2 = (3 + 2x)(x + -5) Reorder the terms: -8x + 2x2 = (3 + 2x)(-5 + x) Multiply (3 + 2x) * (-5 + x) -8x + 2x2 = (3(-5 + x) + 2x * (-5 + x)) -8x + 2x2 = ((-5 * 3 + x * 3) + 2x * (-5 + x)) -8x + 2x2 = ((-15 + 3x) + 2x * (-5 + x)) -8x + 2x2 = (-15 + 3x + (-5 * 2x + x * 2x)) -8x + 2x2 = (-15 + 3x + (-10x + 2x2)) Combine like terms: 3x + -10x = -7x -8x + 2x2 = (-15 + -7x + 2x2) Add '-2x2' to each side of the equation. -8x + 2x2 + -2x2 = -15 + -7x + 2x2 + -2x2 Combine like terms: 2x2 + -2x2 = 0 -8x + 0 = -15 + -7x + 2x2 + -2x2 -8x = -15 + -7x + 2x2 + -2x2 Combine like terms: 2x2 + -2x2 = 0 -8x = -15 + -7x + 0 -8x = -15 + -7x Solving -8x = -15 + -7x Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '7x' to each side of the equation. -8x + 7x = -15 + -7x + 7x Combine like terms: -8x + 7x = -1x -1x = -15 + -7x + 7x Combine like terms: -7x + 7x = 0 -1x = -15 + 0 -1x = -15 Divide each side by '-1'. x = 15 Simplifying x = 15
| 3m+35=8m-5 | | k^2-10k=0 | | 72=x^2+6x+6 | | w-(-8)=5 | | c^2-3-6c^2=9-7c^2-11 | | x-7x=36 | | 0.1y-30=16-0.06y | | 2y+64=9y-48 | | 80=r+r | | x+18x+81=4x+176 | | -8=5v-3v | | 72x^9y^7/8x^3y^5 | | -5(x-2)-6=4 | | -9n-22=7n-10-4n | | -4x+18=-2 | | 3(x+7)=2x+43 | | 47/10*-17/9 | | 15=c^3-2 | | (c^2*b^(2/3))^(-1/2) | | 6x+8=44-7x | | 0.5b+4=2 | | 0.5x+(-1.5)=9 | | q=d/1-t | | 7x-54=9x | | -7x-8y=4 | | 2(99+100x+x^2)=0 | | 3n+4=6n+16 | | 0.16(10000)-0.07y=0.03(y+10000) | | 3/5(x+2) | | -9xb=-117 | | 3a^2+6a+2b^2=0 | | 4y-8+92=180 |