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Simplifying (x + 2)(x + -3) = (x2 + 9) Reorder the terms: (2 + x)(x + -3) = (x2 + 9) Reorder the terms: (2 + x)(-3 + x) = (x2 + 9) Multiply (2 + x) * (-3 + x) (2(-3 + x) + x(-3 + x)) = (x2 + 9) ((-3 * 2 + x * 2) + x(-3 + x)) = (x2 + 9) ((-6 + 2x) + x(-3 + x)) = (x2 + 9) (-6 + 2x + (-3 * x + x * x)) = (x2 + 9) (-6 + 2x + (-3x + x2)) = (x2 + 9) Combine like terms: 2x + -3x = -1x (-6 + -1x + x2) = (x2 + 9) Reorder the terms: -6 + -1x + x2 = (9 + x2) Remove parenthesis around (9 + x2) -6 + -1x + x2 = 9 + x2 Add '-1x2' to each side of the equation. -6 + -1x + x2 + -1x2 = 9 + x2 + -1x2 Combine like terms: x2 + -1x2 = 0 -6 + -1x + 0 = 9 + x2 + -1x2 -6 + -1x = 9 + x2 + -1x2 Combine like terms: x2 + -1x2 = 0 -6 + -1x = 9 + 0 -6 + -1x = 9 Solving -6 + -1x = 9 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '6' to each side of the equation. -6 + 6 + -1x = 9 + 6 Combine like terms: -6 + 6 = 0 0 + -1x = 9 + 6 -1x = 9 + 6 Combine like terms: 9 + 6 = 15 -1x = 15 Divide each side by '-1'. x = -15 Simplifying x = -15
| X*x=156 | | -16=5x+6+6x | | 2-3x=14+5 | | 5n+6n+7n=18n | | a=iwh | | 50+50x=200+45x | | -5(-7x+3)-5x=3(-5+7x) | | 8+2n=-3n+4n | | 2k+3k+4=-3 | | 4n-4(-3n+1)=-4-3n | | 8x=808 | | X-1+4=6 | | 2(y+14)=20 | | (2x+6)+(10x-5)=61 | | 9xy=152 | | Y=w(h-5)forh | | log(3x+16)=6 | | -6=5n+n | | 10-4(x-1)+11*3= | | 6(n+3)=12h-12 | | ln(3x-16)=6 | | 11x+24=x+28 | | 5-3n-5n=13 | | 0.25*x=688 | | 0.3*x=688 | | 6*35=(6*x)+(6*x) | | -90-38+81= | | ln(3x-16)=16 | | -s+0.32=25-0.55 | | 29+8v=-5(-6v-2)-3v | | -p+4(4p-2)6= | | 6(-2+2k)=4(k+12)-4k |