-5x^2+20x+14=25

Simple and best practice solution for -5x^2+20x+14=25 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 -5x^2+20x+14=25 equation:


Simplifying
-5x2 + 20x + 14 = 25

Reorder the terms:
14 + 20x + -5x2 = 25

Solving
14 + 20x + -5x2 = 25

Solving for variable 'x'.

Reorder the terms:
14 + -25 + 20x + -5x2 = 25 + -25

Combine like terms: 14 + -25 = -11
-11 + 20x + -5x2 = 25 + -25

Combine like terms: 25 + -25 = 0
-11 + 20x + -5x2 = 0

Begin completing the square.  Divide all terms by
-5 the coefficient of the squared term: 

Divide each side by '-5'.
2.2 + -4x + x2 = 0

Move the constant term to the right:

Add '-2.2' to each side of the equation.
2.2 + -4x + -2.2 + x2 = 0 + -2.2

Reorder the terms:
2.2 + -2.2 + -4x + x2 = 0 + -2.2

Combine like terms: 2.2 + -2.2 = 0.0
0.0 + -4x + x2 = 0 + -2.2
-4x + x2 = 0 + -2.2

Combine like terms: 0 + -2.2 = -2.2
-4x + x2 = -2.2

The x term is -4x.  Take half its coefficient (-2).
Square it (4) and add it to both sides.

Add '4' to each side of the equation.
-4x + 4 + x2 = -2.2 + 4

Reorder the terms:
4 + -4x + x2 = -2.2 + 4

Combine like terms: -2.2 + 4 = 1.8
4 + -4x + x2 = 1.8

Factor a perfect square on the left side:
(x + -2)(x + -2) = 1.8

Calculate the square root of the right side: 1.341640787

Break this problem into two subproblems by setting 
(x + -2) equal to 1.341640787 and -1.341640787.

Subproblem 1

x + -2 = 1.341640787 Simplifying x + -2 = 1.341640787 Reorder the terms: -2 + x = 1.341640787 Solving -2 + x = 1.341640787 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '2' to each side of the equation. -2 + 2 + x = 1.341640787 + 2 Combine like terms: -2 + 2 = 0 0 + x = 1.341640787 + 2 x = 1.341640787 + 2 Combine like terms: 1.341640787 + 2 = 3.341640787 x = 3.341640787 Simplifying x = 3.341640787

Subproblem 2

x + -2 = -1.341640787 Simplifying x + -2 = -1.341640787 Reorder the terms: -2 + x = -1.341640787 Solving -2 + x = -1.341640787 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '2' to each side of the equation. -2 + 2 + x = -1.341640787 + 2 Combine like terms: -2 + 2 = 0 0 + x = -1.341640787 + 2 x = -1.341640787 + 2 Combine like terms: -1.341640787 + 2 = 0.658359213 x = 0.658359213 Simplifying x = 0.658359213

Solution

The solution to the problem is based on the solutions from the subproblems. x = {3.341640787, 0.658359213}

See similar equations:

| 1.3x+0.7x=14 | | x(16+3.2)=-38.4 | | 8g=24/35 | | -5v-5=-45 | | 5-2(10.5)-12=14 | | 14y+21p= | | v^2-2v-62=0 | | x+8+x^2=(-4) | | y/4-3y/2=y/8 | | 2x^2-x^2-18x+9=0 | | x/4-1/6=5/12-2x/3 | | 3x^2-12x=21 | | (3y-4)-(7y+1)=0 | | X-.38x=868 | | 16x^2+16x-4=0 | | 8(x+4)=14 | | 0.9x-12=1.2x-15 | | 5=-5(x+2) | | 2w+8=4w-10 | | 1x+3(2x-1)=4(2x+1) | | 5x-1=3-x | | -1=8y/64 | | 4(3n-2)=4 | | m/3-1=-4 | | w^2+10w-19=0 | | R^3=64 | | X/48=57/76 | | 1/2x=3/6x-4 | | 2c=4/6 | | y^2+22y+42=-54 | | 4(x-7)=2x+12+2x | | 27x^2-51x+14=0 |

Equations solver categories