4x^2-13x-25=4

Simple and best practice solution for 4x^2-13x-25=4 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 4x^2-13x-25=4 equation:


Simplifying
4x2 + -13x + -25 = 4

Reorder the terms:
-25 + -13x + 4x2 = 4

Solving
-25 + -13x + 4x2 = 4

Solving for variable 'x'.

Reorder the terms:
-25 + -4 + -13x + 4x2 = 4 + -4

Combine like terms: -25 + -4 = -29
-29 + -13x + 4x2 = 4 + -4

Combine like terms: 4 + -4 = 0
-29 + -13x + 4x2 = 0

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

Divide each side by '4'.
-7.25 + -3.25x + x2 = 0

Move the constant term to the right:

Add '7.25' to each side of the equation.
-7.25 + -3.25x + 7.25 + x2 = 0 + 7.25

Reorder the terms:
-7.25 + 7.25 + -3.25x + x2 = 0 + 7.25

Combine like terms: -7.25 + 7.25 = 0.00
0.00 + -3.25x + x2 = 0 + 7.25
-3.25x + x2 = 0 + 7.25

Combine like terms: 0 + 7.25 = 7.25
-3.25x + x2 = 7.25

The x term is -3.25x.  Take half its coefficient (-1.625).
Square it (2.640625) and add it to both sides.

Add '2.640625' to each side of the equation.
-3.25x + 2.640625 + x2 = 7.25 + 2.640625

Reorder the terms:
2.640625 + -3.25x + x2 = 7.25 + 2.640625

Combine like terms: 7.25 + 2.640625 = 9.890625
2.640625 + -3.25x + x2 = 9.890625

Factor a perfect square on the left side:
(x + -1.625)(x + -1.625) = 9.890625

Calculate the square root of the right side: 3.144936406

Break this problem into two subproblems by setting 
(x + -1.625) equal to 3.144936406 and -3.144936406.

Subproblem 1

x + -1.625 = 3.144936406 Simplifying x + -1.625 = 3.144936406 Reorder the terms: -1.625 + x = 3.144936406 Solving -1.625 + x = 3.144936406 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.625' to each side of the equation. -1.625 + 1.625 + x = 3.144936406 + 1.625 Combine like terms: -1.625 + 1.625 = 0.000 0.000 + x = 3.144936406 + 1.625 x = 3.144936406 + 1.625 Combine like terms: 3.144936406 + 1.625 = 4.769936406 x = 4.769936406 Simplifying x = 4.769936406

Subproblem 2

x + -1.625 = -3.144936406 Simplifying x + -1.625 = -3.144936406 Reorder the terms: -1.625 + x = -3.144936406 Solving -1.625 + x = -3.144936406 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '1.625' to each side of the equation. -1.625 + 1.625 + x = -3.144936406 + 1.625 Combine like terms: -1.625 + 1.625 = 0.000 0.000 + x = -3.144936406 + 1.625 x = -3.144936406 + 1.625 Combine like terms: -3.144936406 + 1.625 = -1.519936406 x = -1.519936406 Simplifying x = -1.519936406

Solution

The solution to the problem is based on the solutions from the subproblems. x = {4.769936406, -1.519936406}

See similar equations:

| 4y+5x=2y-3x+16 | | 2x+15=4x-3 | | 9+w=-44 | | 3+4x=6x-3 | | 2(-3m+4)+7m=4 | | -3x-6=2x+4 | | 2(3x-2)=11 | | x+(2x+7)=25 | | -21=x+-15 | | 4t-3+9=30 | | 6y+3=2y-5 | | (7t-2)-(-3t+1)=6(4+t) | | b+-4=10 | | 2(x+12)=7x | | x+2=4x+3 | | -1.7h=-27.2 | | 48=-6n | | 8x+18=-19 | | 3/4(12p+8)=-21 | | 3x+3=7x-3 | | z+-8=35 | | N=0.04-78.80 | | 4x^2-13x-29=0 | | y^3+125= | | -6w+9=9w-81 | | 7+t=22 | | -6x^2-25x-4=0 | | 54*(2)=c | | 5(x+3)-2(x-2)=7 | | 29=5(2a-1)+2a | | .68f=12.8 | | 8-z+z= |

Equations solver categories