5x^2-16x-52=9

Simple and best practice solution for 5x^2-16x-52=9 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^2-16x-52=9 equation:


Simplifying
5x2 + -16x + -52 = 9

Reorder the terms:
-52 + -16x + 5x2 = 9

Solving
-52 + -16x + 5x2 = 9

Solving for variable 'x'.

Reorder the terms:
-52 + -9 + -16x + 5x2 = 9 + -9

Combine like terms: -52 + -9 = -61
-61 + -16x + 5x2 = 9 + -9

Combine like terms: 9 + -9 = 0
-61 + -16x + 5x2 = 0

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

Divide each side by '5'.
-12.2 + -3.2x + x2 = 0

Move the constant term to the right:

Add '12.2' to each side of the equation.
-12.2 + -3.2x + 12.2 + x2 = 0 + 12.2

Reorder the terms:
-12.2 + 12.2 + -3.2x + x2 = 0 + 12.2

Combine like terms: -12.2 + 12.2 = 0.0
0.0 + -3.2x + x2 = 0 + 12.2
-3.2x + x2 = 0 + 12.2

Combine like terms: 0 + 12.2 = 12.2
-3.2x + x2 = 12.2

The x term is -3.2x.  Take half its coefficient (-1.6).
Square it (2.56) and add it to both sides.

Add '2.56' to each side of the equation.
-3.2x + 2.56 + x2 = 12.2 + 2.56

Reorder the terms:
2.56 + -3.2x + x2 = 12.2 + 2.56

Combine like terms: 12.2 + 2.56 = 14.76
2.56 + -3.2x + x2 = 14.76

Factor a perfect square on the left side:
(x + -1.6)(x + -1.6) = 14.76

Calculate the square root of the right side: 3.841874542

Break this problem into two subproblems by setting 
(x + -1.6) equal to 3.841874542 and -3.841874542.

Subproblem 1

x + -1.6 = 3.841874542 Simplifying x + -1.6 = 3.841874542 Reorder the terms: -1.6 + x = 3.841874542 Solving -1.6 + x = 3.841874542 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.6' to each side of the equation. -1.6 + 1.6 + x = 3.841874542 + 1.6 Combine like terms: -1.6 + 1.6 = 0.0 0.0 + x = 3.841874542 + 1.6 x = 3.841874542 + 1.6 Combine like terms: 3.841874542 + 1.6 = 5.441874542 x = 5.441874542 Simplifying x = 5.441874542

Subproblem 2

x + -1.6 = -3.841874542 Simplifying x + -1.6 = -3.841874542 Reorder the terms: -1.6 + x = -3.841874542 Solving -1.6 + x = -3.841874542 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.6' to each side of the equation. -1.6 + 1.6 + x = -3.841874542 + 1.6 Combine like terms: -1.6 + 1.6 = 0.0 0.0 + x = -3.841874542 + 1.6 x = -3.841874542 + 1.6 Combine like terms: -3.841874542 + 1.6 = -2.241874542 x = -2.241874542 Simplifying x = -2.241874542

Solution

The solution to the problem is based on the solutions from the subproblems. x = {5.441874542, -2.241874542}

See similar equations:

| 7x+4y+7z-2x+4z-5y= | | 8x+1+x+3x+1=180 | | 2x+46=7x-9 | | 90=3y+2x | | 5m+6=3m-8 | | -4x-6x=-100 | | -3(d+-20)=6 | | 3x+2-37=180 | | 4a-3whena=7 | | a=x-y/t | | 3(4y-8)=-25 | | 3.3k=-43.23 | | 2(7x-1)=38 | | -4x-6x=-104 | | 5x+16=7x-2 | | -8=x=11/-2 | | 3x+2x^2-26=0 | | nw/5x=2 | | 11x/-2=-8 | | ((3/2)/(6/4))=(18/n) | | 169x23y4/5)1/2(64x.y^2)12 | | 4p+w=8.25 | | -2a-3+4+6a=27 | | (8/15)=(n/6) | | 10(x-4)=-50 | | (-42/14)=(21/n) | | -10-(-45)=x/4 | | 7x-5x=543 | | 5x^2+10xy= | | -3.8x-1=-3.4x+3 | | 2p+3w=7.25 | | 8x+2y+4z-4x+2z-3y= |

Equations solver categories