Math, asked by harjithclasher, 9 months ago

the sum of (x+5) observations is (xpower3+125).find the mean of the observations

Answers

Answered by Raghav1330

2

Answer:x²-5x+25

Step-by-step explanation:

According to the algebraic formula

a³+b³= a²-ab+b²

Now we have sum of (x+5) no of observations as x³+125 which can be expressed as x³+5³

Now mean is nothing but

sum of Observations/no of observations

So,

(x³+5³)/x+5= x²-5x+25

Hence the result

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