10x^2+20x-57=-5

Simple and best practice solution for 10x^2+20x-57=-5 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 10x^2+20x-57=-5 equation:


Simplifying
10x2 + 20x + -57 = -5

Reorder the terms:
-57 + 20x + 10x2 = -5

Solving
-57 + 20x + 10x2 = -5

Solving for variable 'x'.

Reorder the terms:
-57 + 5 + 20x + 10x2 = -5 + 5

Combine like terms: -57 + 5 = -52
-52 + 20x + 10x2 = -5 + 5

Combine like terms: -5 + 5 = 0
-52 + 20x + 10x2 = 0

Factor out the Greatest Common Factor (GCF), '2'.
2(-26 + 10x + 5x2) = 0

Ignore the factor 2.

Subproblem 1

Set the factor '(-26 + 10x + 5x2)' equal to zero and attempt to solve: Simplifying -26 + 10x + 5x2 = 0 Solving -26 + 10x + 5x2 = 0 Begin completing the square. Divide all terms by 5 the coefficient of the squared term: Divide each side by '5'. -5.2 + 2x + x2 = 0 Move the constant term to the right: Add '5.2' to each side of the equation. -5.2 + 2x + 5.2 + x2 = 0 + 5.2 Reorder the terms: -5.2 + 5.2 + 2x + x2 = 0 + 5.2 Combine like terms: -5.2 + 5.2 = 0.0 0.0 + 2x + x2 = 0 + 5.2 2x + x2 = 0 + 5.2 Combine like terms: 0 + 5.2 = 5.2 2x + x2 = 5.2 The x term is 2x. Take half its coefficient (1). Square it (1) and add it to both sides. Add '1' to each side of the equation. 2x + 1 + x2 = 5.2 + 1 Reorder the terms: 1 + 2x + x2 = 5.2 + 1 Combine like terms: 5.2 + 1 = 6.2 1 + 2x + x2 = 6.2 Factor a perfect square on the left side: (x + 1)(x + 1) = 6.2 Calculate the square root of the right side: 2.48997992 Break this problem into two subproblems by setting (x + 1) equal to 2.48997992 and -2.48997992.

Subproblem 1

x + 1 = 2.48997992 Simplifying x + 1 = 2.48997992 Reorder the terms: 1 + x = 2.48997992 Solving 1 + x = 2.48997992 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1' to each side of the equation. 1 + -1 + x = 2.48997992 + -1 Combine like terms: 1 + -1 = 0 0 + x = 2.48997992 + -1 x = 2.48997992 + -1 Combine like terms: 2.48997992 + -1 = 1.48997992 x = 1.48997992 Simplifying x = 1.48997992

Subproblem 2

x + 1 = -2.48997992 Simplifying x + 1 = -2.48997992 Reorder the terms: 1 + x = -2.48997992 Solving 1 + x = -2.48997992 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-1' to each side of the equation. 1 + -1 + x = -2.48997992 + -1 Combine like terms: 1 + -1 = 0 0 + x = -2.48997992 + -1 x = -2.48997992 + -1 Combine like terms: -2.48997992 + -1 = -3.48997992 x = -3.48997992 Simplifying x = -3.48997992

Solution

The solution to the problem is based on the solutions from the subproblems. x = {1.48997992, -3.48997992}

Solution

x = {1.48997992, -3.48997992}

See similar equations:

| f(x)=0.1e(-x)sin(4x^3) | | 10+14z= | | -5(x+7)=4(-8x-2) | | -4=U/4 | | y=1/3(2) | | 2x+5=5(x+1) | | 43-6x=11-10x | | 25.9+(-4.3)= | | n^2+8n-75=0 | | -7=2u | | X^2-3x=x+21 | | 3x-5x+5=x-5+10 | | 9=3s | | -26=a-76 | | 4x+7=-56-5x | | 40=-4x-20 | | (6-v)(5v-8)=0 | | X(x-3)=x+21 | | 10(v+3)-2v=2(4v+3)-7 | | 6(2x-2)-2(3x-5)=0 | | -4y+8(y+5)=28 | | 0.30x+0.05(2-x)=0.10(-19) | | (X+5)+(2x-2)=90 | | 3/2x=27 | | 18-(4n-5)=-9 | | y=1/3(1) | | 40=4x-20 | | 5(v-4)-7v=-12 | | 5w-y+6w-2y+z= | | (X+5)+(2x+2)=90 | | 4y+5=2y-3 | | 10x^2-20x-33=-3 |

Equations solver categories