4x^2+10x-7=0

Simple and best practice solution for 4x^2+10x-7=0 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+10x-7=0 equation:


Simplifying
4x2 + 10x + -7 = 0

Reorder the terms:
-7 + 10x + 4x2 = 0

Solving
-7 + 10x + 4x2 = 0

Solving for variable 'x'.

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

Divide each side by '4'.
-1.75 + 2.5x + x2 = 0

Move the constant term to the right:

Add '1.75' to each side of the equation.
-1.75 + 2.5x + 1.75 + x2 = 0 + 1.75

Reorder the terms:
-1.75 + 1.75 + 2.5x + x2 = 0 + 1.75

Combine like terms: -1.75 + 1.75 = 0.00
0.00 + 2.5x + x2 = 0 + 1.75
2.5x + x2 = 0 + 1.75

Combine like terms: 0 + 1.75 = 1.75
2.5x + x2 = 1.75

The x term is 2.5x.  Take half its coefficient (1.25).
Square it (1.5625) and add it to both sides.

Add '1.5625' to each side of the equation.
2.5x + 1.5625 + x2 = 1.75 + 1.5625

Reorder the terms:
1.5625 + 2.5x + x2 = 1.75 + 1.5625

Combine like terms: 1.75 + 1.5625 = 3.3125
1.5625 + 2.5x + x2 = 3.3125

Factor a perfect square on the left side:
(x + 1.25)(x + 1.25) = 3.3125

Calculate the square root of the right side: 1.820027472

Break this problem into two subproblems by setting 
(x + 1.25) equal to 1.820027472 and -1.820027472.

Subproblem 1

x + 1.25 = 1.820027472 Simplifying x + 1.25 = 1.820027472 Reorder the terms: 1.25 + x = 1.820027472 Solving 1.25 + x = 1.820027472 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1.25' to each side of the equation. 1.25 + -1.25 + x = 1.820027472 + -1.25 Combine like terms: 1.25 + -1.25 = 0.00 0.00 + x = 1.820027472 + -1.25 x = 1.820027472 + -1.25 Combine like terms: 1.820027472 + -1.25 = 0.570027472 x = 0.570027472 Simplifying x = 0.570027472

Subproblem 2

x + 1.25 = -1.820027472 Simplifying x + 1.25 = -1.820027472 Reorder the terms: 1.25 + x = -1.820027472 Solving 1.25 + x = -1.820027472 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1.25' to each side of the equation. 1.25 + -1.25 + x = -1.820027472 + -1.25 Combine like terms: 1.25 + -1.25 = 0.00 0.00 + x = -1.820027472 + -1.25 x = -1.820027472 + -1.25 Combine like terms: -1.820027472 + -1.25 = -3.070027472 x = -3.070027472 Simplifying x = -3.070027472

Solution

The solution to the problem is based on the solutions from the subproblems. x = {0.570027472, -3.070027472}

See similar equations:

| 4x/3=6 | | y+9=-3y-7 | | x(23-2x)(13-2x)= | | 3y=7x+21 | | 8x+68=12x | | A^2+12a+38=3 | | x(21-2x)(12-2x)= | | 8y+27=27-3 | | y/-3=15 | | (2m+5)(4m-7)=0 | | X+65+25=180 | | 2x+8=7x | | 7y-7x=7y-42 | | 24-5a=9 | | X^2-15x+c=0 | | x^2+2xy+y^2-x-y=0 | | 4(x-3)=10x-40 | | x^2+2xy+y^2-m-n=0 | | y=0.0003x+0.0102 | | 7=12+5y | | 8x/7x-49 | | Y/6-3=5-5/6 | | -16=z/4 | | x+5=6x-50 | | 7m+30=-12 | | d/2=16 | | 4/5x^3-3/2x^2 | | 7+n=24 | | 7/2x-x+3/x=2/7 | | x-(x-2/3)=2-(2-x/4) | | 5=a-2 | | 3s^4-s^2-24=0 |

Equations solver categories