x*x-1=3

Simple and best practice solution for x*x-1=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 x*x-1=3 equation: 


Simplifying
x * x + -1 = 3

Multiply x * x
x2 + -1 = 3

Reorder the terms:
-1 + x2 = 3

Solving
-1 + x2 = 3

Solving for variable 'x'.

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

Add '1' to each side of the equation.
-1 + 1 + x2 = 3 + 1

Combine like terms: -1 + 1 = 0
0 + x2 = 3 + 1
x2 = 3 + 1

Combine like terms: 3 + 1 = 4
x2 = 4

Simplifying
x2 = 4

Take the square root of each side:
x = {-2, 2}

See similar equations:

| f(x)=3x^4+28x^3-108x^2 | | 2+5(f+3)= | | 10x-5=4x+1 | | 7x-(5x+2)=8x-14 | | x+(3/x)=7 | | 2x^4-7x^3-4x^2=0 | | 4x+10=3x-1 | | 2y=4+2x | | (12+5)-3(x-4)=2 | | (5-7y)+(-40)=10 | | 7x=104-6x | | 5x-2(x-5)=31 | | =6(x-6)+7x(3x+8) | | 5x-36=41-2x | | 4x+9x-10=3 | | 3x+2(x-3)+4=13 | | -12+2x=30-5x | | (a+b)*2=20 | | -63+5x=33-3x | | 4-(6+(2m-9))=y | | 2(1-4x)=3(2x+1) | | m-(6+(m-9))=y | | -9+x=-2+18 | | 2x-39=-5x+10 | | 3x+2+x=4(x-6) | | 21+(-35)= | | 7-[-8]= | | 3-2(x-5)=4 | | 3-(4+(-m+1))=y | | 10[-8]= | | m-(4+(-m-2))=y | | 4a+3b=84 |

Equations solver categories