2400-160f+2f^2=1312.5

Simple and best practice solution for 2400-160f+2f^2=1312.5 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 2400-160f+2f^2=1312.5 equation:


Simplifying
2400 + -160f + 2f2 = 1312.5

Solving
2400 + -160f + 2f2 = 1312.5

Solving for variable 'f'.

Reorder the terms:
2400 + -1312.5 + -160f + 2f2 = 1312.5 + -1312.5

Combine like terms: 2400 + -1312.5 = 1087.5
1087.5 + -160f + 2f2 = 1312.5 + -1312.5

Combine like terms: 1312.5 + -1312.5 = 0.0
1087.5 + -160f + 2f2 = 0.0

Begin completing the square.  Divide all terms by
2 the coefficient of the squared term: 

Divide each side by '2'.
543.75 + -80f + f2 = 0.0

Move the constant term to the right:

Add '-543.75' to each side of the equation.
543.75 + -80f + -543.75 + f2 = 0.0 + -543.75

Reorder the terms:
543.75 + -543.75 + -80f + f2 = 0.0 + -543.75

Combine like terms: 543.75 + -543.75 = 0.00
0.00 + -80f + f2 = 0.0 + -543.75
-80f + f2 = 0.0 + -543.75

Combine like terms: 0.0 + -543.75 = -543.75
-80f + f2 = -543.75

The f term is -80f.  Take half its coefficient (-40).
Square it (1600) and add it to both sides.

Add '1600' to each side of the equation.
-80f + 1600 + f2 = -543.75 + 1600

Reorder the terms:
1600 + -80f + f2 = -543.75 + 1600

Combine like terms: -543.75 + 1600 = 1056.25
1600 + -80f + f2 = 1056.25

Factor a perfect square on the left side:
(f + -40)(f + -40) = 1056.25

Calculate the square root of the right side: 32.5

Break this problem into two subproblems by setting 
(f + -40) equal to 32.5 and -32.5.

Subproblem 1

f + -40 = 32.5 Simplifying f + -40 = 32.5 Reorder the terms: -40 + f = 32.5 Solving -40 + f = 32.5 Solving for variable 'f'. Move all terms containing f to the left, all other terms to the right. Add '40' to each side of the equation. -40 + 40 + f = 32.5 + 40 Combine like terms: -40 + 40 = 0 0 + f = 32.5 + 40 f = 32.5 + 40 Combine like terms: 32.5 + 40 = 72.5 f = 72.5 Simplifying f = 72.5

Subproblem 2

f + -40 = -32.5 Simplifying f + -40 = -32.5 Reorder the terms: -40 + f = -32.5 Solving -40 + f = -32.5 Solving for variable 'f'. Move all terms containing f to the left, all other terms to the right. Add '40' to each side of the equation. -40 + 40 + f = -32.5 + 40 Combine like terms: -40 + 40 = 0 0 + f = -32.5 + 40 f = -32.5 + 40 Combine like terms: -32.5 + 40 = 7.5 f = 7.5 Simplifying f = 7.5

Solution

The solution to the problem is based on the solutions from the subproblems. f = {72.5, 7.5}

See similar equations:

| -2730=-28000r^2-56000r | | f(x)=12x^2+x-20 | | a=20.5*16 | | -3x+(24-x)=-20 | | 2(4y-2)=-12 | | y=12x^2+x-20 | | 9(3k+5)=9 | | 2x-20=-5x+1 | | 5(K-8)-(4K-3)=-2 | | -3s^2+s+10=0 | | X(3X+X)=8(8+2+X) | | 2x-20=-5+1 | | x+x+2=136 | | 10000000000000000+100000000000000000000= | | 27a^3-8=0 | | 2=20x+5 | | a^2=-48-14a | | 1.85=-logx | | x+(X+20)=50 | | 180=x+8 | | 8log(x+2)=48 | | 18n=5n | | log(3-v)=log-4v | | 6n^3-18n^2=0 | | 8x+4=40 | | 11y+34=13y | | 2m+3m-2n= | | 16+8r=4r-16 | | 16x^2+96x+25y^2+250y+359=0 | | 2x+6=360 | | 10x+3y=150 | | x^2-10y+25=81 |

Equations solver categories