0=5x^2-12x+9

Simple and best practice solution for 0=5x^2-12x+9 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 0=5x^2-12x+9 equation:


Simplifying
0 = 5x2 + -12x + 9

Reorder the terms:
0 = 9 + -12x + 5x2

Solving
0 = 9 + -12x + 5x2

Solving for variable 'x'.

Combine like terms: 0 + -9 = -9
-9 + 12x + -5x2 = 9 + -12x + 5x2 + -9 + 12x + -5x2

Reorder the terms:
-9 + 12x + -5x2 = 9 + -9 + -12x + 12x + 5x2 + -5x2

Combine like terms: 9 + -9 = 0
-9 + 12x + -5x2 = 0 + -12x + 12x + 5x2 + -5x2
-9 + 12x + -5x2 = -12x + 12x + 5x2 + -5x2

Combine like terms: -12x + 12x = 0
-9 + 12x + -5x2 = 0 + 5x2 + -5x2
-9 + 12x + -5x2 = 5x2 + -5x2

Combine like terms: 5x2 + -5x2 = 0
-9 + 12x + -5x2 = 0

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

Divide each side by '-5'.
1.8 + -2.4x + x2 = 0

Move the constant term to the right:

Add '-1.8' to each side of the equation.
1.8 + -2.4x + -1.8 + x2 = 0 + -1.8

Reorder the terms:
1.8 + -1.8 + -2.4x + x2 = 0 + -1.8

Combine like terms: 1.8 + -1.8 = 0.0
0.0 + -2.4x + x2 = 0 + -1.8
-2.4x + x2 = 0 + -1.8

Combine like terms: 0 + -1.8 = -1.8
-2.4x + x2 = -1.8

The x term is -2.4x.  Take half its coefficient (-1.2).
Square it (1.44) and add it to both sides.

Add '1.44' to each side of the equation.
-2.4x + 1.44 + x2 = -1.8 + 1.44

Reorder the terms:
1.44 + -2.4x + x2 = -1.8 + 1.44

Combine like terms: -1.8 + 1.44 = -0.36
1.44 + -2.4x + x2 = -0.36

Factor a perfect square on the left side:
(x + -1.2)(x + -1.2) = -0.36

Can't calculate square root of the right side.

The solution to this equation could not be determined.

See similar equations:

| 8x+3=8(x+6) | | -3(2t-4)+4t=6t-7 | | -4(6x+8)=-104 | | -10=65 | | 7a=-7+6a | | x+(x+2)=124 | | 2w-6(w-4)=-4 | | 12=(.5x)(2x+2) | | x(x+2)=124 | | -69+3=3(29+4) | | 5+3r=5(1-4r) | | X^2-13=3 | | 0.10(y-7)+0.43y=0.03y-0.50 | | 6x+1.2=0.3x-.9+0.8x | | x+10x=20 | | 12(x+3)=52 | | (-5x+2)(7x-13)=0 | | 6(x+3)-3=15 | | 32+-17x=-11x | | 2(0)-5y=17 | | 6y-7=y+8 | | 2(-3)-5y=17 | | -9-9(9+3p)=14-p | | 5=13+3n | | 18=x+3-6x | | 8x-20+5x+5=180 | | 23-5y=17 | | 0-4(p+7)=2(1-p) | | (4+-9i+-3in+1)+3ni=5-9i | | -9.5+6x=42.1 | | 0.50x^2+x=1.25 | | f(-2)+f(2)= |

Equations solver categories