x^2-9=1

Simple and best practice solution for x^2-9=1 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 x^2-9=1 equation: 


Simplifying
x2 + -9 = 1

Reorder the terms:
-9 + x2 = 1

Solving
-9 + x2 = 1

Solving for variable 'x'.

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

Add '9' to each side of the equation.
-9 + 9 + x2 = 1 + 9

Combine like terms: -9 + 9 = 0
0 + x2 = 1 + 9
x2 = 1 + 9

Combine like terms: 1 + 9 = 10
x2 = 10

Simplifying
x2 = 10

Take the square root of each side:
x = {-3.16227766, 3.16227766}

See similar equations:

| 3x+11=-2x-14 | | [7x-3x]+2=18 | | 5w-5=-5 | | 6(4+n)=-18 | | 2y-18x=13 | | 13=-6k-5+6 | | 6=2x^2+5x-12 | | -7=8-50+b | | 4.12+1.44g=12.62 | | 3-6=2x+19 | | -3(x+3)+3=5(x+3)+8 | | 6(-2x-5)=-25x+12 | | 5x+9=3x+69 | | 7x^2=8-3x | | u^2-25u+46=0 | | 7x-2-6-2x=8x-4x+5-11 | | 5x-(-12x)+20=-3 | | 9x-(3x+7)=8x-15 | | 7(a-3)=85 | | 10X-8=7X-9 | | k+8k-16=3(k-4)+8 | | 7(x-7)+30=3(x-5) | | 7(y-4)=14 | | t+2(t-3)=30 | | 11-12n=203 | | 4x+(32+16x)=2x+4 | | 3x^2+12x+55=7 | | 3s+3(1-5)=s-17 | | 3(3v+4)=39 | | 4abs(y+7)-32=0 | | 2y+4a-6y-6a= | | -1x=32 |

Equations solver categories