5+x*x+x*x=9

Simple and best practice solution for 5+x*x+x*x=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 5+x*x+x*x=9 equation: 


Simplifying
5 + x * x + x * x = 9

Multiply x * x
5 + x2 + x * x = 9

Multiply x * x
5 + x2 + x2 = 9

Combine like terms: x2 + x2 = 2x2
5 + 2x2 = 9

Solving
5 + 2x2 = 9

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '-5' to each side of the equation.
5 + -5 + 2x2 = 9 + -5

Combine like terms: 5 + -5 = 0
0 + 2x2 = 9 + -5
2x2 = 9 + -5

Combine like terms: 9 + -5 = 4
2x2 = 4

Divide each side by '2'.
x2 = 2

Simplifying
x2 = 2

Take the square root of each side:
x = {-1.414213562, 1.414213562}

See similar equations:

| -y/5=30 | | -6(x-1)-7=-7x | | -15=3y-3 | | 3x(-2)=-3 | | 3/8b=21 | | 72.50n+100=536 | | 3-5.2p=-5.2+3 | | 44+f=-30 | | -2t^2-32t=50 | | 3(x-4)=3x-20+8 | | -2=2+2x | | 3(x-3)=(6x-18)/2 | | v^2-4v-v+4= | | -1/3-(-1/2) | | x^2(x+4)+9(x+4)-70(x+4)=0 | | 5+xy+xy=9 | | 2x-41=22-x | | 4x+1.50x=33.96 | | -1/6-(-1/6) | | 25=7k-17 | | -6+4u=-34 | | x^2+26x-43=0 | | -1/8(c-4)=-4 | | 5(3x+9)=24+9 | | 2(6+2n)-4= | | 8/×-12 | | 6(-16x+8)=96-120x | | 8.9*10/4 | | 90+4x-7=180 | | v^2-2vx-63x^2= | | 3y+150= | | 13-3n=8 |

Equations solver categories