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Simplifying x(x + 1) = (x + 4)(x + -1) Reorder the terms: x(1 + x) = (x + 4)(x + -1) (1 * x + x * x) = (x + 4)(x + -1) (1x + x2) = (x + 4)(x + -1) Reorder the terms: 1x + x2 = (4 + x)(x + -1) Reorder the terms: 1x + x2 = (4 + x)(-1 + x) Multiply (4 + x) * (-1 + x) 1x + x2 = (4(-1 + x) + x(-1 + x)) 1x + x2 = ((-1 * 4 + x * 4) + x(-1 + x)) 1x + x2 = ((-4 + 4x) + x(-1 + x)) 1x + x2 = (-4 + 4x + (-1 * x + x * x)) 1x + x2 = (-4 + 4x + (-1x + x2)) Combine like terms: 4x + -1x = 3x 1x + x2 = (-4 + 3x + x2) Add '-1x2' to each side of the equation. 1x + x2 + -1x2 = -4 + 3x + x2 + -1x2 Combine like terms: x2 + -1x2 = 0 1x + 0 = -4 + 3x + x2 + -1x2 1x = -4 + 3x + x2 + -1x2 Combine like terms: x2 + -1x2 = 0 1x = -4 + 3x + 0 1x = -4 + 3x Solving 1x = -4 + 3x Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-3x' to each side of the equation. 1x + -3x = -4 + 3x + -3x Combine like terms: 1x + -3x = -2x -2x = -4 + 3x + -3x Combine like terms: 3x + -3x = 0 -2x = -4 + 0 -2x = -4 Divide each side by '-2'. x = 2 Simplifying x = 2
| -1x+85=0 | | x^3+2x^2-78=0 | | 14x-5+2x-7x=12-3-x+6 | | X+x+x+y=74 | | 5x^2-40x+3=0 | | x+x*0.1=3120 | | 0.4[8+x]=0.5[8-x] | | 2(4x-4)=-32 | | 3a*3b*4c= | | 5x+5=3(2x+3) | | 6y(y+6)=35 | | 9x-4x=-6-5 | | 3sinx+1=3 | | 8c+3d-5c= | | 9v-7=6v+4 | | 8x+12=9x+1 | | =6x^3-32x | | 5(6q+1)= | | X^3-4x-1=30 | | 13p+1=11p+8 | | 6b+8-3=35 | | (3ab*2*c*3)*2a*b*4/ab= | | 1.2n=100 | | X+113=105 | | 2w+6=13 | | 21y-(y(y-1))=4 | | 21y-(21(y-1))=8 | | 2/x-1=3/x | | 21y-(y-1)=4 | | 44x+3=15x | | 11x/ | | 21y-(21(y-1))=4 |