Respuesta :
assume the number is y
30 + 3(y x y), let say y is 2
30 + 3(2 x 2)
30 + 3(4)
30 + 12 = 42
30 + 3(y x y), let say y is 2
30 + 3(2 x 2)
30 + 3(4)
30 + 12 = 42
The number is 30+ 3x².
What is square of a number?
When an integer is multiplied by itself, the resultant number is known as its square number. Basically, a square number is a number that is obtained by the product of two same numbers. In geometry, the area of a square with 'n' as the side length (where n is an integer) is the finest example of a square number.
When an integer is multiplied by the same integer, the resultant number is known as a square number. For example, when we multiply 5 × 5 = 52, we get 25. Here, 25 is a square number. Square numbers are always positive, they cannot be negative because when a negative number is multiplied by the same negative number, it results in a positive number.
let the number be x
Now, 3 times square of a number
3x²
and, 30 increased
=30+ 3x²
Hence, the number is 30+ 3x².
Learn more about square here:
https://brainly.com/question/17749819
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