Question

factorise 72 to get -34 quadratic equations in 1 variable​

Answer 1

Step-by-step explanation:

Given : quadratic equation in one variable.

To Find : How to solve using extracting the square roots. or Complete the square roots.

Solution: ax² + bx+ c = 0. (x + y)² = (x² + 2xy + y²) (x - y)² = ( x² - 2xy + y²) ax² + bx+ c = 0. Divide both sided by a. => x² + (b/a)x + c = 0. => x² + 2. x (b/2a) + c = 0.