40=-0.01x^2+0.5x+2

Simple and best practice solution for 40=-0.01x^2+0.5x+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 40=-0.01x^2+0.5x+2 equation:


Simplifying
40 = -0.01x2 + 0.5x + 2

Reorder the terms:
40 = 2 + 0.5x + -0.01x2

Solving
40 = 2 + 0.5x + -0.01x2

Solving for variable 'x'.

Combine like terms: 40 + -2 = 38
38 + -0.5x + 0.01x2 = 2 + 0.5x + -0.01x2 + -2 + -0.5x + 0.01x2

Reorder the terms:
38 + -0.5x + 0.01x2 = 2 + -2 + 0.5x + -0.5x + -0.01x2 + 0.01x2

Combine like terms: 2 + -2 = 0
38 + -0.5x + 0.01x2 = 0 + 0.5x + -0.5x + -0.01x2 + 0.01x2
38 + -0.5x + 0.01x2 = 0.5x + -0.5x + -0.01x2 + 0.01x2

Combine like terms: 0.5x + -0.5x = 0.0
38 + -0.5x + 0.01x2 = 0.0 + -0.01x2 + 0.01x2
38 + -0.5x + 0.01x2 = -0.01x2 + 0.01x2

Combine like terms: -0.01x2 + 0.01x2 = 0.00
38 + -0.5x + 0.01x2 = 0.00

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

Divide each side by '0.01'.
3800 + -50x + x2 = 0

Move the constant term to the right:

Add '-3800' to each side of the equation.
3800 + -50x + -3800 + x2 = 0 + -3800

Reorder the terms:
3800 + -3800 + -50x + x2 = 0 + -3800

Combine like terms: 3800 + -3800 = 0
0 + -50x + x2 = 0 + -3800
-50x + x2 = 0 + -3800

Combine like terms: 0 + -3800 = -3800
-50x + x2 = -3800

The x term is -50x.  Take half its coefficient (-25).
Square it (625) and add it to both sides.

Add '625' to each side of the equation.
-50x + 625 + x2 = -3800 + 625

Reorder the terms:
625 + -50x + x2 = -3800 + 625

Combine like terms: -3800 + 625 = -3175
625 + -50x + x2 = -3175

Factor a perfect square on the left side:
(x + -25)(x + -25) = -3175

Can't calculate square root of the right side.

The solution to this equation could not be determined.

See similar equations:

| 4+b^2=20+a | | 8t-4+6t=24+7t | | 4/5(a+10)=1a | | x+.06x-30=190 | | 40(20+x)=2000 | | 10-2m=40 | | ax+by^3=c+7 | | 41.4=.5(a+8.2)6 | | X^2-x-4= | | 8+c=8 | | 6w^2-7w+2=0 | | 9+a=27 | | 2y/3+7=5 | | 5x-12=10-3x | | -4x^2+48x+128=0 | | f-4=6+26 | | t+19=39 | | 2x+70=4x | | x^4-3x^3+5x-27x-36=0 | | 2.6(k-5)=9.1 | | -25+16x^2=0 | | 7x+3x=98+1.50x | | 7r+2p=4500 | | 5.5+1x=10.50 | | (x+3+3)(8x-6)=2(x+8)(4x+2)-150 | | 8.93-0.11x-0.33=2.15x-2.7 | | 4-12+9-9x^2+1=2 | | 3.5k-8.76=2.9k+9.6 | | 4(x+3.1)=20.8 | | 2x+60=4x | | 7=-3x^2-x | | (3x-1)(3x+1)=2 |

Equations solver categories