f^2+2f-43=0

Simple and best practice solution for f^2+2f-43=0 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^2+2f-43=0 equation:


Simplifying
f2 + 2f + -43 = 0

Reorder the terms:
-43 + 2f + f2 = 0

Solving
-43 + 2f + f2 = 0

Solving for variable 'f'.

Begin completing the square.

Move the constant term to the right:

Add '43' to each side of the equation.
-43 + 2f + 43 + f2 = 0 + 43

Reorder the terms:
-43 + 43 + 2f + f2 = 0 + 43

Combine like terms: -43 + 43 = 0
0 + 2f + f2 = 0 + 43
2f + f2 = 0 + 43

Combine like terms: 0 + 43 = 43
2f + f2 = 43

The f term is 2f.  Take half its coefficient (1).
Square it (1) and add it to both sides.

Add '1' to each side of the equation.
2f + 1 + f2 = 43 + 1

Reorder the terms:
1 + 2f + f2 = 43 + 1

Combine like terms: 43 + 1 = 44
1 + 2f + f2 = 44

Factor a perfect square on the left side:
(f + 1)(f + 1) = 44

Calculate the square root of the right side: 6.633249581

Break this problem into two subproblems by setting 
(f + 1) equal to 6.633249581 and -6.633249581.

Subproblem 1

f + 1 = 6.633249581 Simplifying f + 1 = 6.633249581 Reorder the terms: 1 + f = 6.633249581 Solving 1 + f = 6.633249581 Solving for variable 'f'. Move all terms containing f to the left, all other terms to the right. Add '-1' to each side of the equation. 1 + -1 + f = 6.633249581 + -1 Combine like terms: 1 + -1 = 0 0 + f = 6.633249581 + -1 f = 6.633249581 + -1 Combine like terms: 6.633249581 + -1 = 5.633249581 f = 5.633249581 Simplifying f = 5.633249581

Subproblem 2

f + 1 = -6.633249581 Simplifying f + 1 = -6.633249581 Reorder the terms: 1 + f = -6.633249581 Solving 1 + f = -6.633249581 Solving for variable 'f'. Move all terms containing f to the left, all other terms to the right. Add '-1' to each side of the equation. 1 + -1 + f = -6.633249581 + -1 Combine like terms: 1 + -1 = 0 0 + f = -6.633249581 + -1 f = -6.633249581 + -1 Combine like terms: -6.633249581 + -1 = -7.633249581 f = -7.633249581 Simplifying f = -7.633249581

Solution

The solution to the problem is based on the solutions from the subproblems. f = {5.633249581, -7.633249581}

See similar equations:

| 4(x+5)=2(x+25) | | k^2+12k-19=0 | | 2x+6y+4-y-9x-6= | | -4(-6x+2)=-128 | | s+53=g | | Y=1/0.75 | | u-31+u-31=u | | s+53= | | -102=6(-3x-2) | | -2+2=-4+12x | | x-6x+8x-5x= | | n-5n+1=15 | | j^2-26j=17 | | 7x-(5x+6)+(x-2)=3x-8 | | x^2+8x-43=0 | | s-2+s+14=s+48 | | 0.5x+2=x+8 | | 6x-1/2=3 | | -4(5x-8)=-48 | | s-2+s+14+x=s+48 | | -22=2(x+4)-7x | | x+(x+1)=168 | | 4x+25=-8x+61 | | k^2x^2-8x+4=0 | | d^2+4d=23 | | -3(5y-10)-y=-2(y-5) | | 2y+1+3x-2+x-w+1+3-4w=22 | | 90=.65xX | | y^2-8y=49 | | X^5=5x^3 | | X=504 | | 16+4x^2=0 |

Equations solver categories