Question

Adding and subtracting rational expressions!
Pleaseee HELP

Answer 1

\[\sqrt{y ^{3}} + \sqrt{4y ^{3}}-2y \sqrt{y}\]

Answer 2

Simplify the first two terms to be similar to the last. \[\sqrt{y ^{2}y} + \sqrt{2^{2}y^{2}y} -2y \sqrt{y} \] \[y \sqrt{y} + 2y \sqrt{y} - 2y \sqrt{y}\] Then combine like terms and, \[\sqrt{y ^{3}}\] is your answer