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Simplifying x2 + 9 = (x + -3)(x + -5) Reorder the terms: 9 + x2 = (x + -3)(x + -5) Reorder the terms: 9 + x2 = (-3 + x)(x + -5) Reorder the terms: 9 + x2 = (-3 + x)(-5 + x) Multiply (-3 + x) * (-5 + x) 9 + x2 = (-3(-5 + x) + x(-5 + x)) 9 + x2 = ((-5 * -3 + x * -3) + x(-5 + x)) 9 + x2 = ((15 + -3x) + x(-5 + x)) 9 + x2 = (15 + -3x + (-5 * x + x * x)) 9 + x2 = (15 + -3x + (-5x + x2)) Combine like terms: -3x + -5x = -8x 9 + x2 = (15 + -8x + x2) Add '-1x2' to each side of the equation. 9 + x2 + -1x2 = 15 + -8x + x2 + -1x2 Combine like terms: x2 + -1x2 = 0 9 + 0 = 15 + -8x + x2 + -1x2 9 = 15 + -8x + x2 + -1x2 Combine like terms: x2 + -1x2 = 0 9 = 15 + -8x + 0 9 = 15 + -8x Solving 9 = 15 + -8x Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '8x' to each side of the equation. 9 + 8x = 15 + -8x + 8x Combine like terms: -8x + 8x = 0 9 + 8x = 15 + 0 9 + 8x = 15 Add '-9' to each side of the equation. 9 + -9 + 8x = 15 + -9 Combine like terms: 9 + -9 = 0 0 + 8x = 15 + -9 8x = 15 + -9 Combine like terms: 15 + -9 = 6 8x = 6 Divide each side by '8'. x = 0.75 Simplifying x = 0.75
| 7*24=21*x | | z=15/z-2 | | 6sin^2(x)=13sinx-7 | | m/3+3m-1/6=m | | 14-x=5x-28 | | 0.5(2a-3.2)+4=1.2(0.3a+4) | | (x^2-9)(x^2-100)=0 | | 3-4+3x/5=x/2 | | n=5*5-5 | | x+3x=3x-12 | | 12+2y-1/3=y/4 | | 3x+4-5x=10 | | y-x=m(x-p) | | 126=3x+3(12+x) | | 5x+7x=6x-10 | | 2y+2x+3y-5=32 | | 2*log(x)=10 | | 2y+2x=3y-5 | | (8x+2)(2x-7)= | | 10=2*log(x/10) | | 112=xy | | 57.96=4.477*log(x/100) | | 8x-0.94=7(x-0.93) | | 4*4+95*(100)-(11+17*1)= | | -[-(20+1-3)-4]=2x+3 | | 3/4k-8=3 | | x+.7=10 | | 3b-7=2b+5 | | X-3/4y=2 | | 7b/20=4.2 | | 3/4k-8 | | 10(2.2+b)=15.2 |