5x^2+2x=175

Simple and best practice solution for 5x^2+2x=175 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+2x=175 equation:


Simplifying
5x2 + 2x = 175

Reorder the terms:
2x + 5x2 = 175

Solving
2x + 5x2 = 175

Solving for variable 'x'.

Reorder the terms:
-175 + 2x + 5x2 = 175 + -175

Combine like terms: 175 + -175 = 0
-175 + 2x + 5x2 = 0

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

Divide each side by '5'.
-35 + 0.4x + x2 = 0

Move the constant term to the right:

Add '35' to each side of the equation.
-35 + 0.4x + 35 + x2 = 0 + 35

Reorder the terms:
-35 + 35 + 0.4x + x2 = 0 + 35

Combine like terms: -35 + 35 = 0
0 + 0.4x + x2 = 0 + 35
0.4x + x2 = 0 + 35

Combine like terms: 0 + 35 = 35
0.4x + x2 = 35

The x term is 0.4x.  Take half its coefficient (0.2).
Square it (0.04) and add it to both sides.

Add '0.04' to each side of the equation.
0.4x + 0.04 + x2 = 35 + 0.04

Reorder the terms:
0.04 + 0.4x + x2 = 35 + 0.04

Combine like terms: 35 + 0.04 = 35.04
0.04 + 0.4x + x2 = 35.04

Factor a perfect square on the left side:
(x + 0.2)(x + 0.2) = 35.04

Calculate the square root of the right side: 5.919459435

Break this problem into two subproblems by setting 
(x + 0.2) equal to 5.919459435 and -5.919459435.

Subproblem 1

x + 0.2 = 5.919459435 Simplifying x + 0.2 = 5.919459435 Reorder the terms: 0.2 + x = 5.919459435 Solving 0.2 + x = 5.919459435 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.2' to each side of the equation. 0.2 + -0.2 + x = 5.919459435 + -0.2 Combine like terms: 0.2 + -0.2 = 0.0 0.0 + x = 5.919459435 + -0.2 x = 5.919459435 + -0.2 Combine like terms: 5.919459435 + -0.2 = 5.719459435 x = 5.719459435 Simplifying x = 5.719459435

Subproblem 2

x + 0.2 = -5.919459435 Simplifying x + 0.2 = -5.919459435 Reorder the terms: 0.2 + x = -5.919459435 Solving 0.2 + x = -5.919459435 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-0.2' to each side of the equation. 0.2 + -0.2 + x = -5.919459435 + -0.2 Combine like terms: 0.2 + -0.2 = 0.0 0.0 + x = -5.919459435 + -0.2 x = -5.919459435 + -0.2 Combine like terms: -5.919459435 + -0.2 = -6.119459435 x = -6.119459435 Simplifying x = -6.119459435

Solution

The solution to the problem is based on the solutions from the subproblems. x = {5.719459435, -6.119459435}

See similar equations:

| 65=5+5x | | 3=2w+7 | | -14uv+4v-21u=0 | | -14uv+4v=o | | B(x)=40.00-0.06x | | 4d+2(d+6)=-3(d-4) | | -6v-4=-4(v-3) | | -71p+2p-9p+2+43= | | y=(-.0625)x^2+.375x+(-2.05) | | -6v-4=4(v-3) | | -6v-4=-4v(v-3) | | 10(3x-1)=-100 | | 3(v+3)=-8v-2 | | -16+x=8 | | 3y+48=-3(y+2) | | (16q+4)+42=29q+20 | | (-2+v+y)(-9)= | | 5x(12-5)-9=36 | | 2x-10=3x-35 | | -5=-5y+3(y+5) | | 4ln(x-2)=-2 | | (x+31)+34=45x+21 | | -6(2x-2u-2)= | | x+2=4-2*x | | -3u+7(u-2)=-22 | | 3m-12=-6 | | 8(v+7)-2v=38 | | -(-2y-x+2)= | | 2x^2-10x=4x | | 8(v+7)+2v=38 | | (1)3.45=3(4.42) | | -1.2+0.15x=0 |

Equations solver categories