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Simplifying x2 + 3x + -18 = (x + 3)(x + 6) Reorder the terms: -18 + 3x + x2 = (x + 3)(x + 6) Reorder the terms: -18 + 3x + x2 = (3 + x)(x + 6) Reorder the terms: -18 + 3x + x2 = (3 + x)(6 + x) Multiply (3 + x) * (6 + x) -18 + 3x + x2 = (3(6 + x) + x(6 + x)) -18 + 3x + x2 = ((6 * 3 + x * 3) + x(6 + x)) -18 + 3x + x2 = ((18 + 3x) + x(6 + x)) -18 + 3x + x2 = (18 + 3x + (6 * x + x * x)) -18 + 3x + x2 = (18 + 3x + (6x + x2)) Combine like terms: 3x + 6x = 9x -18 + 3x + x2 = (18 + 9x + x2) Add '-1x2' to each side of the equation. -18 + 3x + x2 + -1x2 = 18 + 9x + x2 + -1x2 Combine like terms: x2 + -1x2 = 0 -18 + 3x + 0 = 18 + 9x + x2 + -1x2 -18 + 3x = 18 + 9x + x2 + -1x2 Combine like terms: x2 + -1x2 = 0 -18 + 3x = 18 + 9x + 0 -18 + 3x = 18 + 9x Solving -18 + 3x = 18 + 9x Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-9x' to each side of the equation. -18 + 3x + -9x = 18 + 9x + -9x Combine like terms: 3x + -9x = -6x -18 + -6x = 18 + 9x + -9x Combine like terms: 9x + -9x = 0 -18 + -6x = 18 + 0 -18 + -6x = 18 Add '18' to each side of the equation. -18 + 18 + -6x = 18 + 18 Combine like terms: -18 + 18 = 0 0 + -6x = 18 + 18 -6x = 18 + 18 Combine like terms: 18 + 18 = 36 -6x = 36 Divide each side by '-6'. x = -6 Simplifying x = -6
| 5x-36=2(x+3) | | 7/5x=140 | | x^2+3x-18=(x-3)(x-6) | | 10.5/sin(A)=8.3/sin(B)=c/sin(62) | | 106=5u+11 | | (C+6)+5=11 | | x^2+3x-18=(x+3)(x-6) | | 5x-20=26 | | 9*15=3*x | | x=11i | | x^2+3x-18=(x-3)(x+6) | | 2x^2+px-1=0 | | 1/4y-6=2 | | 9x-(5x+2)-[7x+4-(x-2)]=0 | | 1-7=12 | | -16x^2+50x+3= | | -7/8x=-24/64 | | 3(m+2n+2m-4n)= | | 80+60+40-80+60= | | 8x=(6x+20) | | 0=2.5-0.5lnx | | 20x+40x= | | F(0)=.41in(0+1) | | 2x-64= | | 1/9×27 | | (4/3)-(4/25) | | 6x+9=6x+18 | | 4x+9y=-9slope | | (10/9x^-1/3)-(10/9x^-4/3)=0 | | 2x+64=90 | | 2x^5y^7+4x^6y^6=0 | | P=0.85-0.00045q |