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Simplifying (3x + 1)(x + -2) = x(3x + 2) Reorder the terms: (1 + 3x)(x + -2) = x(3x + 2) Reorder the terms: (1 + 3x)(-2 + x) = x(3x + 2) Multiply (1 + 3x) * (-2 + x) (1(-2 + x) + 3x * (-2 + x)) = x(3x + 2) ((-2 * 1 + x * 1) + 3x * (-2 + x)) = x(3x + 2) ((-2 + 1x) + 3x * (-2 + x)) = x(3x + 2) (-2 + 1x + (-2 * 3x + x * 3x)) = x(3x + 2) (-2 + 1x + (-6x + 3x2)) = x(3x + 2) Combine like terms: 1x + -6x = -5x (-2 + -5x + 3x2) = x(3x + 2) Reorder the terms: -2 + -5x + 3x2 = x(2 + 3x) -2 + -5x + 3x2 = (2 * x + 3x * x) -2 + -5x + 3x2 = (2x + 3x2) Add '-3x2' to each side of the equation. -2 + -5x + 3x2 + -3x2 = 2x + 3x2 + -3x2 Combine like terms: 3x2 + -3x2 = 0 -2 + -5x + 0 = 2x + 3x2 + -3x2 -2 + -5x = 2x + 3x2 + -3x2 Combine like terms: 3x2 + -3x2 = 0 -2 + -5x = 2x + 0 -2 + -5x = 2x Solving -2 + -5x = 2x Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-2x' to each side of the equation. -2 + -5x + -2x = 2x + -2x Combine like terms: -5x + -2x = -7x -2 + -7x = 2x + -2x Combine like terms: 2x + -2x = 0 -2 + -7x = 0 Add '2' to each side of the equation. -2 + 2 + -7x = 0 + 2 Combine like terms: -2 + 2 = 0 0 + -7x = 0 + 2 -7x = 0 + 2 Combine like terms: 0 + 2 = 2 -7x = 2 Divide each side by '-7'. x = -0.2857142857 Simplifying x = -0.2857142857
| D^2=2 | | 4x=28+4 | | 2.8(3x-4)=5.1+11 | | 3-5x=5-5x | | 5y-8=3+1 | | 2.50+0.50x=1+0.75x | | 3b=4m | | 8(5x-9)=4-5(4x-1) | | 4(-9+6a)=60 | | 6+y=3y+4 | | -8+6.5(1+6b)=30.5 | | 180x^2=147 | | (x^2+1)(y^2+1)= | | T^2+1=2t | | 4*8x=11.48 | | 29.5-5.5x=7.5(3x+3.5) | | -7x-7=-5x-15 | | c=x-9y | | -2(-2-4a)=5(a-4) | | 5(x+7x)=30+6x | | x/3+7=6 | | -7x-22=4x | | ex=0.7 | | (3a+b)(5a+2b)= | | 18+5x=23 | | f+2f+9f=156 | | V^2-14+48=0 | | 0.5t^2-3t=0 | | 13y-2=y+10 | | -6x+18=9x-12 | | 9w+3=3(9+w) | | d=.5kq |