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Simplifying x * x = 16 + (x + -4)(x + 2) Multiply x * x x2 = 16 + (x + -4)(x + 2) Reorder the terms: x2 = 16 + (-4 + x)(x + 2) Reorder the terms: x2 = 16 + (-4 + x)(2 + x) Multiply (-4 + x) * (2 + x) x2 = 16 + (-4(2 + x) + x(2 + x)) x2 = 16 + ((2 * -4 + x * -4) + x(2 + x)) x2 = 16 + ((-8 + -4x) + x(2 + x)) x2 = 16 + (-8 + -4x + (2 * x + x * x)) x2 = 16 + (-8 + -4x + (2x + x2)) Combine like terms: -4x + 2x = -2x x2 = 16 + (-8 + -2x + x2) Combine like terms: 16 + -8 = 8 x2 = 8 + -2x + x2 Add '-1x2' to each side of the equation. x2 + -1x2 = 8 + -2x + x2 + -1x2 Combine like terms: x2 + -1x2 = 0 0 = 8 + -2x + x2 + -1x2 Combine like terms: x2 + -1x2 = 0 0 = 8 + -2x + 0 0 = 8 + -2x Solving 0 = 8 + -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. 0 + 2x = 8 + -2x + 2x Remove the zero: 2x = 8 + -2x + 2x Combine like terms: -2x + 2x = 0 2x = 8 + 0 2x = 8 Divide each side by '2'. x = 4 Simplifying x = 4
| 8+6y=7y | | 2x+6=-6-2 | | -4(v+7)=-(1+7v) | | 14.3=-1.4-3d | | x*x=16+(x-4)*(x+4) | | P/g=10 | | 9x-5-6x-2=6x-1 | | -10-9z+10z=-12 | | 5g+2=10-3g-8 | | -5r+5=-6r+2 | | (3x-1)(6x+9)=0 | | (x-4)*(x+4)=486 | | 3.50t+5.50+6t=51 | | d+6=10-3d | | 1-7n-1=-8n | | (x-4)*(x-4)=486 | | 60+60+x-20=360 | | 9x-5-6x-2=6x-7 | | -4n+6n=6n-12 | | 2q-6=3+3q | | 60+60+x-20=90 | | 2(x-2)(x-6)=0 | | 17/3x1/3 | | -x-2=12+x | | 60+60+x-20=180 | | 2g=g+10 | | 12/2q=36 | | 3y=x+8.5 | | 5=x-3(x+2) | | P(-2)=x^4-4x^3-7x^2+22x+18 | | 11n^2-24n+4=0 | | 8x3/24 |