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Simplifying (x + 2)(x + 4) = x(x + 10) Reorder the terms: (2 + x)(x + 4) = x(x + 10) Reorder the terms: (2 + x)(4 + x) = x(x + 10) Multiply (2 + x) * (4 + x) (2(4 + x) + x(4 + x)) = x(x + 10) ((4 * 2 + x * 2) + x(4 + x)) = x(x + 10) ((8 + 2x) + x(4 + x)) = x(x + 10) (8 + 2x + (4 * x + x * x)) = x(x + 10) (8 + 2x + (4x + x2)) = x(x + 10) Combine like terms: 2x + 4x = 6x (8 + 6x + x2) = x(x + 10) Reorder the terms: 8 + 6x + x2 = x(10 + x) 8 + 6x + x2 = (10 * x + x * x) 8 + 6x + x2 = (10x + x2) Add '-1x2' to each side of the equation. 8 + 6x + x2 + -1x2 = 10x + x2 + -1x2 Combine like terms: x2 + -1x2 = 0 8 + 6x + 0 = 10x + x2 + -1x2 8 + 6x = 10x + x2 + -1x2 Combine like terms: x2 + -1x2 = 0 8 + 6x = 10x + 0 8 + 6x = 10x Solving 8 + 6x = 10x Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-10x' to each side of the equation. 8 + 6x + -10x = 10x + -10x Combine like terms: 6x + -10x = -4x 8 + -4x = 10x + -10x Combine like terms: 10x + -10x = 0 8 + -4x = 0 Add '-8' to each side of the equation. 8 + -8 + -4x = 0 + -8 Combine like terms: 8 + -8 = 0 0 + -4x = 0 + -8 -4x = 0 + -8 Combine like terms: 0 + -8 = -8 -4x = -8 Divide each side by '-4'. x = 2 Simplifying x = 2
| C(x)=60+2x | | z(123504.13/x)=127943.46 | | 3=|n|/7 | | 3x+x-2=7-2x | | h^2+49+h^2=169 | | 4y+29=105 | | x^3-8x^2+17-10=0 | | 64/[-8/(2)] | | 123504.13/x=23504.13/x | | 1/4sin2x | | (123504.13/x)=(23504.13/x) | | 10j=20 | | 21=c/7 | | x^2+2x-20=6x+1 | | -8-x=4x+17 | | 3x+-4=-5x+6 | | 3x^4+27x^2-7=-x^4 | | -4(n+7)=3(n-5)+8 | | 123504.13/(-123456.79012346*(1-127943.46*Z)^-1)= | | v+32=8v+18 | | 5x-3+2=37 | | -211p=14 | | 3y=-1x+5 | | 6m^2+13m*28=0 | | 4u=3u+19 | | 9x^2-16x+60=x | | 6x^2=-21x | | 7*c=c+12 | | 0.66666667(9x-21)=5 | | 9*b=b+40 | | h^2+(7+h^2)=169 | | 5/3=n/4 |