Answer:
The answer is 484. Please let me know if it helped you.
Step-by-step explanation:
Step-by-step explanation:
sqrt(5x)×(sqrt(8x²) - 2×sqrt(x)) =
sqrt(5x × 8x²) - 2×sqrt(5x × x) =
sqrt(40x) × x - 2x × sqrt(5) =
2x×sqrt(10x) - 2x×sqrt(5)
therefore, the last option is correct.
If
, then by rationalizing the denominator we can rewrite

Now,

and


