(-2f^2-3f-5)+(-2f^2-3f+8)=

Simple and best practice solution for (-2f^2-3f-5)+(-2f^2-3f+8)= 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 (-2f^2-3f-5)+(-2f^2-3f+8)= equation:


Simplifying
(-2f2 + -3f + -5) + (-2f2 + -3f + 8) = 0

Reorder the terms:
(-5 + -3f + -2f2) + (-2f2 + -3f + 8) = 0

Remove parenthesis around (-5 + -3f + -2f2)
-5 + -3f + -2f2 + (-2f2 + -3f + 8) = 0

Reorder the terms:
-5 + -3f + -2f2 + (8 + -3f + -2f2) = 0

Remove parenthesis around (8 + -3f + -2f2)
-5 + -3f + -2f2 + 8 + -3f + -2f2 = 0

Reorder the terms:
-5 + 8 + -3f + -3f + -2f2 + -2f2 = 0

Combine like terms: -5 + 8 = 3
3 + -3f + -3f + -2f2 + -2f2 = 0

Combine like terms: -3f + -3f = -6f
3 + -6f + -2f2 + -2f2 = 0

Combine like terms: -2f2 + -2f2 = -4f2
3 + -6f + -4f2 = 0

Solving
3 + -6f + -4f2 = 0

Solving for variable 'f'.

Begin completing the square.  Divide all terms by
-4 the coefficient of the squared term: 

Divide each side by '-4'.
-0.75 + 1.5f + f2 = 0

Move the constant term to the right:

Add '0.75' to each side of the equation.
-0.75 + 1.5f + 0.75 + f2 = 0 + 0.75

Reorder the terms:
-0.75 + 0.75 + 1.5f + f2 = 0 + 0.75

Combine like terms: -0.75 + 0.75 = 0.00
0.00 + 1.5f + f2 = 0 + 0.75
1.5f + f2 = 0 + 0.75

Combine like terms: 0 + 0.75 = 0.75
1.5f + f2 = 0.75

The f term is 1.5f.  Take half its coefficient (0.75).
Square it (0.5625) and add it to both sides.

Add '0.5625' to each side of the equation.
1.5f + 0.5625 + f2 = 0.75 + 0.5625

Reorder the terms:
0.5625 + 1.5f + f2 = 0.75 + 0.5625

Combine like terms: 0.75 + 0.5625 = 1.3125
0.5625 + 1.5f + f2 = 1.3125

Factor a perfect square on the left side:
(f + 0.75)(f + 0.75) = 1.3125

Calculate the square root of the right side: 1.145643924

Break this problem into two subproblems by setting 
(f + 0.75) equal to 1.145643924 and -1.145643924.

Subproblem 1

f + 0.75 = 1.145643924 Simplifying f + 0.75 = 1.145643924 Reorder the terms: 0.75 + f = 1.145643924 Solving 0.75 + f = 1.145643924 Solving for variable 'f'. Move all terms containing f to the left, all other terms to the right. Add '-0.75' to each side of the equation. 0.75 + -0.75 + f = 1.145643924 + -0.75 Combine like terms: 0.75 + -0.75 = 0.00 0.00 + f = 1.145643924 + -0.75 f = 1.145643924 + -0.75 Combine like terms: 1.145643924 + -0.75 = 0.395643924 f = 0.395643924 Simplifying f = 0.395643924

Subproblem 2

f + 0.75 = -1.145643924 Simplifying f + 0.75 = -1.145643924 Reorder the terms: 0.75 + f = -1.145643924 Solving 0.75 + f = -1.145643924 Solving for variable 'f'. Move all terms containing f to the left, all other terms to the right. Add '-0.75' to each side of the equation. 0.75 + -0.75 + f = -1.145643924 + -0.75 Combine like terms: 0.75 + -0.75 = 0.00 0.00 + f = -1.145643924 + -0.75 f = -1.145643924 + -0.75 Combine like terms: -1.145643924 + -0.75 = -1.895643924 f = -1.895643924 Simplifying f = -1.895643924

Solution

The solution to the problem is based on the solutions from the subproblems. f = {0.395643924, -1.895643924}

See similar equations:

| 86-6x=12x+20 | | 8x^2+6x+1= | | (x^2-3x-3)+(2x^2+7x-2)= | | 3*4y+2y=20 | | x = 7 | | 4x=260 | | (5d+5)-(d-1)= | | 4c=3d+3 | | 4x=130 | | 1/2+4/9 | | 1/4T+1/6T=4 | | 1/4T+1/6T | | 4/7+2/4 | | 4x-11=3x+5 | | 3x^2+3y=0 | | 8x+7=2x-10 | | h^2-8h-48= | | 3+4x=3x+24 | | 9/12*b=9/22 | | 6a-5a=10 | | 4x-2x+12=22 | | 4x-2z+12=22 | | (3x-7)(x+4)= | | x/3+x/2+5 | | 6x-7=2x+14 | | 0,4/0,04+0,08/0,008+0,6/0,2 | | -1.5x+0.7x+0.1=0.3-0.8x | | -9(2+8)=45 | | 2/5(10x-20)12 | | (51/2)x=3 | | (5x/6)=7/12 | | 3x/9=5/6 |

Equations solver categories