2x^2+10x=-2

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


Simplifying
2x2 + 10x = -2

Reorder the terms:
10x + 2x2 = -2

Solving
10x + 2x2 = -2

Solving for variable 'x'.

Reorder the terms:
2 + 10x + 2x2 = -2 + 2

Combine like terms: -2 + 2 = 0
2 + 10x + 2x2 = 0

Factor out the Greatest Common Factor (GCF), '2'.
2(1 + 5x + x2) = 0

Ignore the factor 2.

Subproblem 1

Set the factor '(1 + 5x + x2)' equal to zero and attempt to solve: Simplifying 1 + 5x + x2 = 0 Solving 1 + 5x + x2 = 0 Begin completing the square. Move the constant term to the right: Add '-1' to each side of the equation. 1 + 5x + -1 + x2 = 0 + -1 Reorder the terms: 1 + -1 + 5x + x2 = 0 + -1 Combine like terms: 1 + -1 = 0 0 + 5x + x2 = 0 + -1 5x + x2 = 0 + -1 Combine like terms: 0 + -1 = -1 5x + x2 = -1 The x term is 5x. Take half its coefficient (2.5). Square it (6.25) and add it to both sides. Add '6.25' to each side of the equation. 5x + 6.25 + x2 = -1 + 6.25 Reorder the terms: 6.25 + 5x + x2 = -1 + 6.25 Combine like terms: -1 + 6.25 = 5.25 6.25 + 5x + x2 = 5.25 Factor a perfect square on the left side: (x + 2.5)(x + 2.5) = 5.25 Calculate the square root of the right side: 2.291287847 Break this problem into two subproblems by setting (x + 2.5) equal to 2.291287847 and -2.291287847.

Subproblem 1

x + 2.5 = 2.291287847 Simplifying x + 2.5 = 2.291287847 Reorder the terms: 2.5 + x = 2.291287847 Solving 2.5 + x = 2.291287847 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-2.5' to each side of the equation. 2.5 + -2.5 + x = 2.291287847 + -2.5 Combine like terms: 2.5 + -2.5 = 0.0 0.0 + x = 2.291287847 + -2.5 x = 2.291287847 + -2.5 Combine like terms: 2.291287847 + -2.5 = -0.208712153 x = -0.208712153 Simplifying x = -0.208712153

Subproblem 2

x + 2.5 = -2.291287847 Simplifying x + 2.5 = -2.291287847 Reorder the terms: 2.5 + x = -2.291287847 Solving 2.5 + x = -2.291287847 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-2.5' to each side of the equation. 2.5 + -2.5 + x = -2.291287847 + -2.5 Combine like terms: 2.5 + -2.5 = 0.0 0.0 + x = -2.291287847 + -2.5 x = -2.291287847 + -2.5 Combine like terms: -2.291287847 + -2.5 = -4.791287847 x = -4.791287847 Simplifying x = -4.791287847

Solution

The solution to the problem is based on the solutions from the subproblems. x = {-0.208712153, -4.791287847}

Solution

x = {-0.208712153, -4.791287847}

See similar equations:

| 3x=5x+4 | | h+9=-3h-7 | | 8x^4-4x^3-2x-1=0 | | h+9=3h-7 | | 6m^2-7m-5= | | 5u^2+24u-5= | | -3(3y-6)-y=-3(y-2) | | 17x+9=4(4x+8) | | x^4y^2+7x^2y+5= | | -2x=-8 | | 3(X+6)=4(2X-8) | | 8z^2+32-az-4a= | | y=17.5(2)+19 | | x^4-81= | | 6x^2+2x= | | 12c^2+36ct+27t^2= | | 40v^4+50v^3b-35v^2b^2= | | 9b^2-3b-24=0 | | 8x-7=3x+10 | | 50-2y^2=0 | | 40v^4+30v^3b-25v^2b^2= | | y=4x^2+8x-6 | | 18x^3+51x^2-42x= | | 6b^2-34b-112=0 | | 2=2-14 | | 4x^2+12x-2=0 | | 2m^2+9m+10= | | 6y^9*24y^4= | | 4k+5=7k-7+9k | | (2x+3)(2x+3)=11 | | 19x+7y=18a+6b | | 40=-4(8-6x) |

Equations solver categories