Question

Find the value of x for x^2-1=0

Answer 1

$x^2-1=0$

Move the constant to the right side

$x^2=1$

Take the square root of both sides of the equation and remember to use positive and negative roots

$x= ±1$

Write the solution, on with a $+$ sign and one with a $-$ sign

$x=+1$

$x=-1$