1. The sum of the squares of 3 consecutive
positive numbers is 365. Accordingly,
what is the sum of those numbers ?
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Answer:
Step-by-step explanation:
Let the 3 consecutive positive numbers = x, x +1, x + 2
According to the question,
=> x2+(x+1)2+(x+2)2=365
=> x2+x2+1+2x+x2+4+4x=365
=> 3x2+6x−360=0
=> x2+2x−12=0
=> x×(x+2)=120
=> x(x+2)=10×12=120
=> x = 10
Therefore, Sum of the numbers = 10 + 11 + 12 = 33
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