If p(x) = 42x^2 - 18 and p(x) = 832.5 then what are two possible values for x? (Explain how you got your answer or show work!)

Step-by-step explanation:

We are given the function:

Given that p(x) = 832.5, we want to determine two possible values of x.

We can substitute:

Adding 18 to both sides yields:

And dividing both sides by 42 yields:

We can take the square root of both sides. Since we are taking an even root, we will need plus/minus. Hence:

In conclusion, x = 4.5 or x = -4.5.

c.

step-by-step explanation:

she should of added 9^2 and 12^2. that is because it is a^2+b^2=c^2. c^2 is the hypotenuse and should always be bigger than the other two numbers. which is why she should of added 9 squared and 12 squared together instead of 15 squared.