The answer would be be B
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You first factor out 54 and thats 3^2 * 6
(The factor of a # is what you multiply to get the answer)
You then do the same to x^9 and y ^7
After that you should have square root of [3^2 * 6x^8 * xy^6 * y]
When you combine this you will get 3x^4 y^3 sqre root [6xy]
3/4x=728/3
x=728/3×4/3
x=32.556
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BUT I'M NOT SURE IF IT IS CORRECT

<em><u>Solution:</u></em>
<em><u>Given expression is:</u></em>

We have to combine the like terms
From given expression,

By distributive property,
The distributive property lets you multiply a sum by multiplying each addend separately and then add the products.
a(b + c) = ab + bc
Therefore,
Solve for brackets using distributive property

Add 1/7 and 6/7

Thus the equivalent expression is found
This one is probably f(x)=2(4)
Answer:
No
Step-by-step explanation:
No, because x + x^2 cannot be grouped together.