2x^2+45x+150=0

Simple and best practice solution for 2x^2+45x+150=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 2x^2+45x+150=0 equation:


Simplifying
2x2 + 45x + 150 = 0

Reorder the terms:
150 + 45x + 2x2 = 0

Solving
150 + 45x + 2x2 = 0

Solving for variable 'x'.

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

Divide each side by '2'.
75 + 22.5x + x2 = 0

Move the constant term to the right:

Add '-75' to each side of the equation.
75 + 22.5x + -75 + x2 = 0 + -75

Reorder the terms:
75 + -75 + 22.5x + x2 = 0 + -75

Combine like terms: 75 + -75 = 0
0 + 22.5x + x2 = 0 + -75
22.5x + x2 = 0 + -75

Combine like terms: 0 + -75 = -75
22.5x + x2 = -75

The x term is 22.5x.  Take half its coefficient (11.25).
Square it (126.5625) and add it to both sides.

Add '126.5625' to each side of the equation.
22.5x + 126.5625 + x2 = -75 + 126.5625

Reorder the terms:
126.5625 + 22.5x + x2 = -75 + 126.5625

Combine like terms: -75 + 126.5625 = 51.5625
126.5625 + 22.5x + x2 = 51.5625

Factor a perfect square on the left side:
(x + 11.25)(x + 11.25) = 51.5625

Calculate the square root of the right side: 7.180703308

Break this problem into two subproblems by setting 
(x + 11.25) equal to 7.180703308 and -7.180703308.

Subproblem 1

x + 11.25 = 7.180703308 Simplifying x + 11.25 = 7.180703308 Reorder the terms: 11.25 + x = 7.180703308 Solving 11.25 + x = 7.180703308 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-11.25' to each side of the equation. 11.25 + -11.25 + x = 7.180703308 + -11.25 Combine like terms: 11.25 + -11.25 = 0.00 0.00 + x = 7.180703308 + -11.25 x = 7.180703308 + -11.25 Combine like terms: 7.180703308 + -11.25 = -4.069296692 x = -4.069296692 Simplifying x = -4.069296692

Subproblem 2

x + 11.25 = -7.180703308 Simplifying x + 11.25 = -7.180703308 Reorder the terms: 11.25 + x = -7.180703308 Solving 11.25 + x = -7.180703308 Solving for variable 'x'. Move all terms containing x to the left, all other terms to the right. Add '-11.25' to each side of the equation. 11.25 + -11.25 + x = -7.180703308 + -11.25 Combine like terms: 11.25 + -11.25 = 0.00 0.00 + x = -7.180703308 + -11.25 x = -7.180703308 + -11.25 Combine like terms: -7.180703308 + -11.25 = -18.430703308 x = -18.430703308 Simplifying x = -18.430703308

Solution

The solution to the problem is based on the solutions from the subproblems. x = {-4.069296692, -18.430703308}

See similar equations:

| 3x=-90 | | 2x^2+2y^2-4y=0 | | x+x+2=34 | | (x/(x^2-14x+49))-(1/(2x+14))=(x/(2x^2-98)) | | ?3x=?x-4 | | 6xx+4=(x-1) | | 5/a+4-2/a-7=0 | | x=15.2 | | 5x+6=5-4x | | 3x-9=10x+2 | | 2x-9=3x+17 | | 14=2x-x/4 | | 14=2x-1/4 | | b^2+49+14b+b^2=25 | | 0=0.1x^2+3x | | 0=x(-0.1x+3) | | 0=x(0.1x+3) | | x^(2/3) | | 3(5-x/3)=x-20 | | 2x-4y-2=0 | | (2*ln(x)+4)*(x^2-9)=0 | | -12x-3=-10x-9 | | =8g+5g-4h | | =d-3e+7d | | =6b-2b+3c+5c | | ax^2-c=0 | | 2x^2+5y^2-35=0 | | x(x+6)=140 | | 7(2+x)=6x+20 | | (7x)+28= | | 4y^2=21y+18 | | r/7+1=-3 |

Equations solver categories