Saturday, 2 September 2017

PERFECT SQUARES 1

If 16x2 + 24x + h is a perfect square, find h.

Solution

a = 16, b = 24, c = h.

b2 = 4ac

(24)2 = 4 x 16 x h

576 = 64h

576  =   64h
 64       64
           
h = 9


Hence h = 9


TRY THIS...............


If 4x2 + 12x + w is a perfect square, find w.

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