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Check whether the following are quadratic equations:
$x^2 - 2x = (- 2) (3-x)$
Given:
Given equation is $x^2 - 2x = (- 2) (3-x)$
To do:
We have to check whether the given equation is quadratic.
Solution:
The standard form of a quadratic equation is $ax^2+bx+c=0$.
$x^2 - 2x = (- 2) (3-x)$
$x^2-2x=-6+2x$
$x^2-2x-2x+6=0$
$x^2+-4x+6=0$
$x^2-4x+6=0$ is of the form $ax^2+bx+c=0$
Therefore, $x^2 - 2x = (- 2) (3-x)$ is a quadratic equation.
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