If $$y=5$$​, then what will be the value of $$10y\space\sqrt{y^3-y^2}$$​ ?

Correct option is B

Given:

y = 5

Expression: 1$$0y \sqrt{y^3 - y^2}$$​​

Solution:

​$$10y \sqrt{y^3 - y^2} = 10(5) \sqrt{5^3 - 5^2} = 50 \sqrt{125 - 25} = 50 \sqrt{100} = 50 \times 10 = 500$$​