Question

Check whether ( + 1) + 8 = ( + 2)( − 2) is a quadratic equations.​

Answer 1

Answer:

Given that:

By simplifying we get

${x}^{2} + x + 8 = x {}^{2} - 4$

$x {}^{2} - {x}^{2} + x + 8 + 4 = 0$

$x + 12 = 0$

It is not of the form

$ax { }^{2} + bx + c = 0$

The variable x is only in the first degree.

∴ It is not a quadratic equation.