5×67=a. (67×10)÷2b. (67x2)+(67×2)c. (6 ×7)×5d.(5×6)+(5×7)
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The solution is x = 36, and the sum of the digits is 3 + 6 = 9.
<h3>How to find the value of the number?</h3>
We know that, if we define x as the number, we have:
x + x^2 + √x = 1338
Now we need to find the value of x.
Trivially, we can graph the function:
y = x + x^2 + √x
We can see that the solution of x + x^2 + √x = 1338 is
x = 36
36 + 36^2 + √36 = 1338
Then the sum of the digits of the number is 3 + 6 = 9
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