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Simplifying f(x) = (x + -5)(x + 5)(x + -4) Multiply f * x fx = (x + -5)(x + 5)(x + -4) Reorder the terms: fx = (-5 + x)(x + 5)(x + -4) Reorder the terms: fx = (-5 + x)(5 + x)(x + -4) Reorder the terms: fx = (-5 + x)(5 + x)(-4 + x) Multiply (-5 + x) * (5 + x) fx = (-5(5 + x) + x(5 + x))(-4 + x) fx = ((5 * -5 + x * -5) + x(5 + x))(-4 + x) fx = ((-25 + -5x) + x(5 + x))(-4 + x) fx = (-25 + -5x + (5 * x + x * x))(-4 + x) fx = (-25 + -5x + (5x + x2))(-4 + x) Combine like terms: -5x + 5x = 0 fx = (-25 + 0 + x2)(-4 + x) fx = (-25 + x2)(-4 + x) Multiply (-25 + x2) * (-4 + x) fx = (-25(-4 + x) + x2(-4 + x)) fx = ((-4 * -25 + x * -25) + x2(-4 + x)) fx = ((100 + -25x) + x2(-4 + x)) fx = (100 + -25x + (-4 * x2 + x * x2)) fx = (100 + -25x + (-4x2 + x3)) fx = (100 + -25x + -4x2 + x3) Solving fx = 100 + -25x + -4x2 + x3 Solving for variable 'f'. Move all terms containing f to the left, all other terms to the right. Divide each side by 'x'. f = 100x-1 + -25 + -4x + x2 Simplifying f = 100x-1 + -25 + -4x + x2 Reorder the terms: f = -25 + 100x-1 + -4x + x2
| y=(5.5)-16 | | x^3+y^1=500 | | 8+(n+6)+2= | | 58x^2-35x-4=0 | | 7x-4=4(x-5) | | (b-5)(b^2+5b-8)= | | x+6+2x=x+6 | | 3x+2(-3x+4)=10 | | 1000Q-10Q^2=100+10Q | | (6+x)+9= | | 19=2y+13 | | (-11x^7-9x^6)10x^7= | | 6over-1+2y= | | 30=-6x+2(-x-9) | | 12*n=15 | | 7x^2+21x-28= | | t-t-42= | | 5.5+8=2.5+20 | | 990Q-10Q^2=100 | | 4x-2(5x^2-4x+4)+(8x^2+4x-2)= | | 2.4=c*15 | | 4(5x+5)=20x-1 | | c+b=56 | | -29v-9=28 | | 4(5x+5)=30x-1 | | xy-xy=35 | | 2(n+1)-(8-n)= | | -5m^2-4m-10-5m^2+4m+9= | | xy-yx=35 | | 3(1+6n)=8n-37 | | 2x+2y=68 | | 14(a-5)=-5-9 |