V K Raman and S N Sharma Solutions for Exercise 3: CONCEPT REVISION TEST-20

$x^2-1=0$ has two real roots.

$x^2-x=0$ has a single root.

The roots of $(x-3)(x+2)=0$ are $-3$ and $+2$.

The roots of $x^2-9=0$ are $\pm$ _____.

The roots of $8x^2-2=0$ are _____.

The roots of ${(x+3)}^2=0$ are _____.

The roots of the equation $x=\frac{1}{x}$are _____.

The roots of the equation $3x^2+x=0$ are _____.