5x^2+50x-28=

Simple and best practice solution for 5x^2+50x-28= 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+50x-28= equation:


Simplifying
5x2 + 50x + -28 = 0

Reorder the terms:
-28 + 50x + 5x2 = 0

Solving
-28 + 50x + 5x2 = 0

Solving for variable 'x'.

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

Divide each side by '5'.
-5.6 + 10x + x2 = 0

Move the constant term to the right:

Add '5.6' to each side of the equation.
-5.6 + 10x + 5.6 + x2 = 0 + 5.6

Reorder the terms:
-5.6 + 5.6 + 10x + x2 = 0 + 5.6

Combine like terms: -5.6 + 5.6 = 0.0
0.0 + 10x + x2 = 0 + 5.6
10x + x2 = 0 + 5.6

Combine like terms: 0 + 5.6 = 5.6
10x + x2 = 5.6

The x term is 10x.  Take half its coefficient (5).
Square it (25) and add it to both sides.

Add '25' to each side of the equation.
10x + 25 + x2 = 5.6 + 25

Reorder the terms:
25 + 10x + x2 = 5.6 + 25

Combine like terms: 5.6 + 25 = 30.6
25 + 10x + x2 = 30.6

Factor a perfect square on the left side:
(x + 5)(x + 5) = 30.6

Calculate the square root of the right side: 5.531726674

Break this problem into two subproblems by setting 
(x + 5) equal to 5.531726674 and -5.531726674.

Subproblem 1

x + 5 = 5.531726674 Simplifying x + 5 = 5.531726674 Reorder the terms: 5 + x = 5.531726674 Solving 5 + x = 5.531726674 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-5' to each side of the equation. 5 + -5 + x = 5.531726674 + -5 Combine like terms: 5 + -5 = 0 0 + x = 5.531726674 + -5 x = 5.531726674 + -5 Combine like terms: 5.531726674 + -5 = 0.531726674 x = 0.531726674 Simplifying x = 0.531726674

Subproblem 2

x + 5 = -5.531726674 Simplifying x + 5 = -5.531726674 Reorder the terms: 5 + x = -5.531726674 Solving 5 + x = -5.531726674 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-5' to each side of the equation. 5 + -5 + x = -5.531726674 + -5 Combine like terms: 5 + -5 = 0 0 + x = -5.531726674 + -5 x = -5.531726674 + -5 Combine like terms: -5.531726674 + -5 = -10.531726674 x = -10.531726674 Simplifying x = -10.531726674

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.531726674, -10.531726674}

See similar equations:

| 5x=320-70 | | 3(u+5)=-6u-48 | | 4j=12j | | 3/6=p/8 | | 17x-8=3(5x-2/3) | | 4/3x1/2 | | 0.15/3.6 | | 22=2u+6(u-3) | | 24-6x=6(-6x+4) | | (4x+10)+(2x+20)=54 | | m*21=22b+222 | | -3=-5w+8(w+3) | | 41=x+5+3x | | m*21=22b | | x^2-4sin(2x)=6x | | 3/7(g)=9 | | 3x+7=11+15 | | 30=2(y-5)-6y | | 2x=-1/x | | m*21=22b/b4 | | sine(x)=0.88 | | 5(15x+100)=1250 | | 10n=8n+2 | | 17=7v+8(v+4) | | 6(4)+2=4(4)+10 | | 3x=(x+104) | | 6=-.5n | | -4-3u=-52 | | 5x+(x+4x)= | | m=1+1 | | 2(5n+3)= | | 3x+2y=27.63 |

Equations solver categories