<span>ratio of their perimeters and the ratio of their areas would be </span>5:9 and 25:81
Your answer would be the last option, (6x² - 5)(x² + 2).
This is because when you expand it, you get:
6x² × x² = 6x⁴
6x² × 2 = 12x²
-5 × x² = -5x²
-5 × 2 = -10
Which are all the correct terms.
I hope this helps!
I am sure you are trying to type

If that is it, then you should recall the law of exponents which says,

Let us share the exponent for each of them.

We now apply the law,

We now simplify to obtain,

If that is not the expression let me know so I will know how to help you