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Simplifying y = (x + 2)(x + 4)(x + -5) Reorder the terms: y = (2 + x)(x + 4)(x + -5) Reorder the terms: y = (2 + x)(4 + x)(x + -5) Reorder the terms: y = (2 + x)(4 + x)(-5 + x) Multiply (2 + x) * (4 + x) y = (2(4 + x) + x(4 + x))(-5 + x) y = ((4 * 2 + x * 2) + x(4 + x))(-5 + x) y = ((8 + 2x) + x(4 + x))(-5 + x) y = (8 + 2x + (4 * x + x * x))(-5 + x) y = (8 + 2x + (4x + x2))(-5 + x) Combine like terms: 2x + 4x = 6x y = (8 + 6x + x2)(-5 + x) Multiply (8 + 6x + x2) * (-5 + x) y = (8(-5 + x) + 6x * (-5 + x) + x2(-5 + x)) y = ((-5 * 8 + x * 8) + 6x * (-5 + x) + x2(-5 + x)) y = ((-40 + 8x) + 6x * (-5 + x) + x2(-5 + x)) y = (-40 + 8x + (-5 * 6x + x * 6x) + x2(-5 + x)) y = (-40 + 8x + (-30x + 6x2) + x2(-5 + x)) y = (-40 + 8x + -30x + 6x2 + (-5 * x2 + x * x2)) y = (-40 + 8x + -30x + 6x2 + (-5x2 + x3)) Combine like terms: 8x + -30x = -22x y = (-40 + -22x + 6x2 + -5x2 + x3) Combine like terms: 6x2 + -5x2 = 1x2 y = (-40 + -22x + 1x2 + x3) Solving y = -40 + -22x + 1x2 + x3 Solving for variable 'y'. Move all terms containing y to the left, all other terms to the right. Simplifying y = -40 + -22x + 1x2 + x3
| 7y+12=26 | | 7c+3.9=c+23.4 | | 3(r+2)=2(r+5) | | 12u=4u+32 | | x+7+28=3x | | 1x+2=2x+6 | | 27-3y=21 | | 13x-3=19x+10 | | 7x+2p=4500 | | x+x(.16)=829 | | 7.69-(2.5)(4)= | | 2(k+4)=-15 | | (X-5)/3-1=(X-12)/4 | | 10x-5=12x+9 | | x/-3- | | =((15y^-4)*(24y^10))/6y^7 | | ((15y^-4)*(24y^10))/6y^7 | | 3(a+2)-7=13-(56) | | 3/12=x/7 | | 3q^2-24q+40=0 | | x-12+2x-34=6x+23 | | 7(3-5x)-7x=-2x-4(-3x-8x) | | f(n)=n/2 | | 45.87+-49.36= | | f(n)=3n+9 | | f(n)=-5n+6 | | m(3m+3)= | | 3*(4+6)-5-12= | | 4p+2q-3p-3q= | | 12h-15=3(4h-5) | | 7(3-5x)-7x=-2-4(-3x-8x) | | X/2-(-10)=-20 |