30 increased by 3 times the square of a number

May 2024 ยท 1 minute read
30 increased by 3 times the square of a number

The phrase a number means an arbitrary variable, let's call it x
x

The square of a number means we raise x to the power of 2:
x^2

3 times the square:
3x^2

The phrase increased by means we add 3x^2 to 30:
30 + 3x^2

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