5x^2+22x-30=0

Simple and best practice solution for 5x^2+22x-30=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 5x^2+22x-30=0 equation:


Simplifying
5x2 + 22x + -30 = 0

Reorder the terms:
-30 + 22x + 5x2 = 0

Solving
-30 + 22x + 5x2 = 0

Solving for variable 'x'.

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

Divide each side by '5'.
-6 + 4.4x + x2 = 0

Move the constant term to the right:

Add '6' to each side of the equation.
-6 + 4.4x + 6 + x2 = 0 + 6

Reorder the terms:
-6 + 6 + 4.4x + x2 = 0 + 6

Combine like terms: -6 + 6 = 0
0 + 4.4x + x2 = 0 + 6
4.4x + x2 = 0 + 6

Combine like terms: 0 + 6 = 6
4.4x + x2 = 6

The x term is 4.4x.  Take half its coefficient (2.2).
Square it (4.84) and add it to both sides.

Add '4.84' to each side of the equation.
4.4x + 4.84 + x2 = 6 + 4.84

Reorder the terms:
4.84 + 4.4x + x2 = 6 + 4.84

Combine like terms: 6 + 4.84 = 10.84
4.84 + 4.4x + x2 = 10.84

Factor a perfect square on the left side:
(x + 2.2)(x + 2.2) = 10.84

Calculate the square root of the right side: 3.292415527

Break this problem into two subproblems by setting 
(x + 2.2) equal to 3.292415527 and -3.292415527.

Subproblem 1

x + 2.2 = 3.292415527 Simplifying x + 2.2 = 3.292415527 Reorder the terms: 2.2 + x = 3.292415527 Solving 2.2 + x = 3.292415527 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-2.2' to each side of the equation. 2.2 + -2.2 + x = 3.292415527 + -2.2 Combine like terms: 2.2 + -2.2 = 0.0 0.0 + x = 3.292415527 + -2.2 x = 3.292415527 + -2.2 Combine like terms: 3.292415527 + -2.2 = 1.092415527 x = 1.092415527 Simplifying x = 1.092415527

Subproblem 2

x + 2.2 = -3.292415527 Simplifying x + 2.2 = -3.292415527 Reorder the terms: 2.2 + x = -3.292415527 Solving 2.2 + x = -3.292415527 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-2.2' to each side of the equation. 2.2 + -2.2 + x = -3.292415527 + -2.2 Combine like terms: 2.2 + -2.2 = 0.0 0.0 + x = -3.292415527 + -2.2 x = -3.292415527 + -2.2 Combine like terms: -3.292415527 + -2.2 = -5.492415527 x = -5.492415527 Simplifying x = -5.492415527

Solution

The solution to the problem is based on the solutions from the subproblems. x = {1.092415527, -5.492415527}

See similar equations:

| (W+4)(w^2+6w-11)= | | 1*-2*-3= | | -(2x+3)(5x+7)= | | 3(2n-6)=2(3n-9) | | (x-44)=48x | | -(2x-3)(5x+7)= | | 4x-10+4x-10=180 | | -10x+4y=15 | | 8x+6=5-(8x-9) | | 0-(-66)= | | -12y-9=-117 | | 3(4x+1)(5x+6)= | | 3x+7=-4x+21 | | X(2x^2-5x+7)= | | 5X+15=4x-8+6 | | -((y^2)-2)=y^2-5-2y^2 | | 9(4-s)=10+4s | | n-8=-2n+4n-3 | | (8-2x)+3(4.5+9)= | | 8x^2+5x-13=-4x^2-3x | | 2(x+3)=7x | | -4x-7=-47 | | 3(4x-1)(5x-6)= | | 3(n-6)=27 | | 3(u+2)+2=7(u-1)+9 | | =7m(8m-7) | | 7x-8-8=13 | | 0.375q=-0.5 | | 14x-21+3x+15=96 | | 7x=1.75x+1.75 | | 3a-b*4= | | 4x-y-6=0 |

Equations solver categories