Find the value of x if:
a) 6x=23^2-17^2
b) 25x=536^2-136^2
c) 10x=(12.5)^2-62.5+(2.5)^2

a) 6x=232-1726x=23-1723+176x=6×40x=40b) 25x=5362-136225x=536-136536+13625x=400×672x=16×672x=10752Note:a2-b2=a+ba-bSimilarly try other.

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