Question

x^2-1=0 solve the equation full solution plz​

Answer 1

Answer:

Given

$x {}^{2} - 1 = 0 \\ x {}^{2} = 0 + 1 \\ x { }^{2} = 1 \\ x = \sqrt{1} \\ x = 1$

I hope it will help.

Answer 2

Answer:

formula

=

−

±

2

−

4

√

2

x=\frac{-{\color{#e8710a}{b}} \pm \sqrt{{\color{#e8710a}{b}}^{2}-4{\color{#c92786}{a}}{\color{#129eaf}{c}}}}{2{\color{#c92786}{a}}}

x=2a−b±b2−4ac

Once in standard form, identify a, b and c from the original equation and plug them into the quadratic formulas