f(x)=-(x+1)(x-7)

Simple and best practice solution for f(x)=-(x+1)(x-7) equation. Check how easy it is, and learn it for the future. Our solution is simple, and easy to understand, so don`t hesitate to use it as a solution of your homework.

If it's not what You are looking for type in the equation solver your own equation and let us solve it.

Solution for f(x)=-(x+1)(x-7) equation:


Simplifying
f(x) = -1(x + 1)(x + -7)

Multiply f * x
fx = -1(x + 1)(x + -7)

Reorder the terms:
fx = -1(1 + x)(x + -7)

Reorder the terms:
fx = -1(1 + x)(-7 + x)

Multiply (1 + x) * (-7 + x)
fx = -1(1(-7 + x) + x(-7 + x))
fx = -1((-7 * 1 + x * 1) + x(-7 + x))
fx = -1((-7 + 1x) + x(-7 + x))
fx = -1(-7 + 1x + (-7 * x + x * x))
fx = -1(-7 + 1x + (-7x + x2))

Combine like terms: 1x + -7x = -6x
fx = -1(-7 + -6x + x2)
fx = (-7 * -1 + -6x * -1 + x2 * -1)
fx = (7 + 6x + -1x2)

Solving
fx = 7 + 6x + -1x2

Solving for variable 'f'.

Move all terms containing f to the left, all other terms to the right.

Divide each side by 'x'.
f = 7x-1 + 6 + -1x

Simplifying
f = 7x-1 + 6 + -1x

Reorder the terms:
f = 6 + 7x-1 + -1x

See similar equations:

| 6x(x+4y+4z)= | | 8x+12-5x+5=124 | | 3x-17=17+x | | -5x-76=127-12x | | -2(3r-5)=40 | | 1+r=-15-r | | -7.5g=-6.6666 | | 10y=6y+14 | | 2x^2-11x=-21 | | x+59+84=180 | | (n/6)=4 | | 1.5d=.375 | | -84+9x=x+84 | | x+59+84=x+51 | | -97+2x=9x+50 | | 720+35h=1000 | | (-4k)=32 | | 16=-3(7n-9) | | -6v=42 | | 9y^2+12y-4= | | (2y-14)-2y=-8 | | -21=-n-19 | | 3-7r=-95 | | 5(1.2+6)=7.1+34.4 | | -(-5x-6)=-2(-3x+7)-3x | | -5x-39=2(3x-3) | | 7y+3=24y-18 | | 7x-2=4x+19 | | 8x-86=-4x+46 | | 6x+8+3x+19=90 | | -9(6x+7y-5)= | | -2x-62=-9x+71 |

Equations solver categories