Can someone explain how 9-3x squared turns to that and not 3(3-x squared)?

Yes, it's correct

Step-by-step explanation:

9 - 3x² = 0

common factor 3

3(3-x²) = 0

divide bothside by 3

3-x²=0

=>x² = 3

=> x = ±√3

the answer is 200

step-by-step explanation:

the way the question is worded, it seems to imply the $264 interest is simple interest, not compound interest.

the simple interest for 2 years is $264; the simple interest for 1 year is $132.

$132 interest on a $600 investment means an interest rate of (132/600)*100 = 22%.

the value of $200 at 22% interest compounded annually for three years is

200%281.22%29%5e3

the amount of interest is that value, minus the original $200.

7

step-by-step explanation: