The sum of the three successive terms is 18 and the sum of their squares is 180. Find these first three terms of the same series.
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Let the three terms be x , x+1 and x+2
Their sum is 18,
x + x + 1 + x + 2 = 18
3x+3 = 18
3x = 18-3
3x=15
x =15/3
x = 5
x+ 1 = 6
x+2 = 7
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