Example 1: Find the roots of the quadratic equation x2 + 4x – 5 = 0 by the method of completing the square. Solution: Given quadratic equation is:
The completing the square formula is given by, ax2 + bx + c ⇒ a (x + m)2 + n Where, m = b/2a, n = c – (b 2 /4a) Here, m can be any real number and n is a constant.
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