f(x)=(x+3)(x-5)

Simple and best practice solution for f(x)=(x+3)(x-5) 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+3)(x-5) equation:


Simplifying
f(x) = (x + 3)(x + -5)

Multiply f * x
fx = (x + 3)(x + -5)

Reorder the terms:
fx = (3 + x)(x + -5)

Reorder the terms:
fx = (3 + x)(-5 + x)

Multiply (3 + x) * (-5 + x)
fx = (3(-5 + x) + x(-5 + x))
fx = ((-5 * 3 + x * 3) + x(-5 + x))
fx = ((-15 + 3x) + x(-5 + x))
fx = (-15 + 3x + (-5 * x + x * x))
fx = (-15 + 3x + (-5x + x2))

Combine like terms: 3x + -5x = -2x
fx = (-15 + -2x + x2)

Solving
fx = -15 + -2x + x2

Solving for variable 'f'.

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

Divide each side by 'x'.
f = -15x-1 + -2 + x

Simplifying
f = -15x-1 + -2 + x

Reorder the terms:
f = -2 + -15x-1 + x

See similar equations:

| D=(1/60)26 | | 5y+.4=11.9 | | (6y+8)-(2+5y)=8 | | x^2-0.1x-1.7=0 | | 9x+3y=3whatisy | | 48/6=y | | -3(m+5)=45 | | m^2+7m+12=-7 | | 5x(5x+2)=2(8+5x) | | 166x-15-9x=13 | | y=2x+105 | | 2x-1=-6x+55 | | 6x+4x+2+9=7x+3+2x | | v/5=-9 | | 54/9=y | | 12.2=5.3y-3.7 | | 12w=.0144 | | -(2x-1)-6x+8=81 | | 16m+28=2m | | 6p+5=35 | | y-5/2x=4 | | 16.115t^2+160t-397.14=0 | | 9p+8=12+8p | | -25=7(n+3) | | 41=3x+6x+5 | | 5(x+8)=8+5x+13 | | 2(p-2)-2(-2-4p)=10 | | -2y(y-2)=16 | | 9x-3y=3whatisy | | -7x+11+9x-23=-6 | | 105+2B=175-3B | | 4(2x-1)=3x+5-1 |

Equations solver categories