9x^2-4x=-3

Simple and best practice solution for 9x^2-4x=-3 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 9x^2-4x=-3 equation:


Simplifying
9x2 + -4x = -3

Reorder the terms:
-4x + 9x2 = -3

Solving
-4x + 9x2 = -3

Solving for variable 'x'.

Reorder the terms:
3 + -4x + 9x2 = -3 + 3

Combine like terms: -3 + 3 = 0
3 + -4x + 9x2 = 0

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

Divide each side by '9'.
0.3333333333 + -0.4444444444x + x2 = 0

Move the constant term to the right:

Add '-0.3333333333' to each side of the equation.
0.3333333333 + -0.4444444444x + -0.3333333333 + x2 = 0 + -0.3333333333

Reorder the terms:
0.3333333333 + -0.3333333333 + -0.4444444444x + x2 = 0 + -0.3333333333

Combine like terms: 0.3333333333 + -0.3333333333 = 0.0000000000
0.0000000000 + -0.4444444444x + x2 = 0 + -0.3333333333
-0.4444444444x + x2 = 0 + -0.3333333333

Combine like terms: 0 + -0.3333333333 = -0.3333333333
-0.4444444444x + x2 = -0.3333333333

The x term is -0.4444444444x.  Take half its coefficient (-0.2222222222).
Square it (0.04938271604) and add it to both sides.

Add '0.04938271604' to each side of the equation.
-0.4444444444x + 0.04938271604 + x2 = -0.3333333333 + 0.04938271604

Reorder the terms:
0.04938271604 + -0.4444444444x + x2 = -0.3333333333 + 0.04938271604

Combine like terms: -0.3333333333 + 0.04938271604 = -0.28395061726
0.04938271604 + -0.4444444444x + x2 = -0.28395061726

Factor a perfect square on the left side:
(x + -0.2222222222)(x + -0.2222222222) = -0.28395061726

Can't calculate square root of the right side.

The solution to this equation could not be determined.

See similar equations:

| x-6=5x+14 | | 8.5/x=7/5 | | -x-10=3x+18 | | x/17.5=7 | | -18=-9y | | 2z^2+11z+14=0 | | (X^2)^3x/x^7 | | 6m^2-6m-7=0 | | 5b-45=0 | | 4a=6a+1 | | 7x+9=13x-27 | | n(n-1)=132 | | 1/3v-3/2=-3/5 | | n(n-1)=32 | | y^2-26y+160=0 | | x+44=4x+20 | | C=250+40d | | 4x-14=x+13 | | x-11=4x+16 | | 5-(6+9x)=(4x-1) | | 7.13=2(3.14)r | | 8x+7-3x=5+5x+2 | | 2x-8y-9x+5y= | | -8(-3s-6+8m)= | | X^2-4=45 | | x(x-4)-2=43 | | 77.4(0.681)= | | X+60=35 | | (2+v)(2v+3)=0 | | 3x(12x-5)-6x(6x-5)=0 | | 4x^3-9x^2+7x=2.5 | | 6x-17=2x+15 |

Equations solver categories