Answer 1

Here it has been given that,

16x² − 3 = (2x + 5) (5x − 3)

Now, after solving the above equation further we get,

16x² − 3 = 10x² + 19x - 15

4x² - 19x + 12 = 0

Now as we can see, the above equation clearly represents a quadratic equation of the form ax² + bx + c = 0, where a = 4, b = -19 and c = 12.

Hence, the above equation is a quadratic equation.