Question

I am confused. I believe it is 5(x^2+2)=45

Here is the problem: 5 times the square of a number and 2 is 45.​

Answer 1

Explanation:

We must follow order of operations rules here.

Let the number be x. Then 5x^2 + 2 = 45. No parentheses needed here.

Then 5x^2 = 45, and x = ±9