-3x*x=-7x+9

Simple and best practice solution for -3x*x=-7x+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 -3x*x=-7x+9 equation: 


Simplifying
-3x * x = -7x + 9

Multiply x * x
-3x2 = -7x + 9

Reorder the terms:
-3x2 = 9 + -7x

Solving
-3x2 = 9 + -7x

Solving for variable 'x'.

Reorder the terms:
-9 + 7x + -3x2 = 9 + -7x + -9 + 7x

Reorder the terms:
-9 + 7x + -3x2 = 9 + -9 + -7x + 7x

Combine like terms: 9 + -9 = 0
-9 + 7x + -3x2 = 0 + -7x + 7x
-9 + 7x + -3x2 = -7x + 7x

Combine like terms: -7x + 7x = 0
-9 + 7x + -3x2 = 0

Begin completing the square.  Divide all terms by
-3 the coefficient of the squared term: 

Divide each side by '-3'.
3 + -2.333333333x + x2 = 0

Move the constant term to the right:

Add '-3' to each side of the equation.
3 + -2.333333333x + -3 + x2 = 0 + -3

Reorder the terms:
3 + -3 + -2.333333333x + x2 = 0 + -3

Combine like terms: 3 + -3 = 0
0 + -2.333333333x + x2 = 0 + -3
-2.333333333x + x2 = 0 + -3

Combine like terms: 0 + -3 = -3
-2.333333333x + x2 = -3

The x term is -2.333333333x.  Take half its coefficient (-1.166666667).
Square it (1.361111112) and add it to both sides.

Add '1.361111112' to each side of the equation.
-2.333333333x + 1.361111112 + x2 = -3 + 1.361111112

Reorder the terms:
1.361111112 + -2.333333333x + x2 = -3 + 1.361111112

Combine like terms: -3 + 1.361111112 = -1.638888888
1.361111112 + -2.333333333x + x2 = -1.638888888

Factor a perfect square on the left side:
(x + -1.166666667)(x + -1.166666667) = -1.638888888

Can't calculate square root of the right side.

The solution to this equation could not be determined.

See similar equations:

| 50=x^2 | | 9x+2=8x+9 | | (-3x)(-3x)=-7x+9 | | 72=lwh | | 5m+6mn+(9n)+2(m+n)= | | -9x+30=120 | | 2y-12X=6 | | 4(x+4)=-2x+4 | | 17x-2=100 | | -48-10x=102 | | 6.6(x-1.1)-5.9(2.9x-0.5)= | | 13x+5=12x+15 | | 7(2x+5y)+xy+6(3xy+5)= | | 0.14y+0.07(y+8000)=2240 | | 3h-3=12 | | 4(v-3)+5(3v-1)= | | (x-2)(x-10)=-16 | | 4z+10+3x-11+90=180 | | -2+5=9 | | 3(z+6)-9z= | | 0.5x-2.5=4.2x+1.2 | | 3(x+13)(x+13)=54 | | 12x=25x-5 | | 64/-4X | | -5/16t=-45 | | 15X-8=64 | | log(x-21)=2-logx | | -8(8b-5)=40 | | 0.2x-2.7=3.6x+2.6 | | 4(z+3)-7z= | | 4(6x)=20 | | 63=-8n-5(5n-6) |

Equations solver categories