Question

Simplify the following expression completely, where x

Answer 1

Step-by-step explanation:

$x \sqrt{5x {y}^{4} } + \sqrt{405 {x}^{3} y {}^{4} } - \sqrt{80 {x}^{3} {y}^{4} }$

$x \sqrt{5xy {}^{4} } + 9 x\sqrt{5xy {}^{4} } - 4x \sqrt{5xy {}^{4} }$

$6x \sqrt{5xy {}^{4} }$

Answer 2

Answer:

$x\sqrt{5xy^4} + \sqrt{405x^3y^4} -\sqrt{80x^3y^4} =$

$xy^2\sqrt{5x} + 9xy^2\sqrt{5x} -4xy^2\sqrt{5x} =$

$xy^2\sqrt{5x} (1 + 9 - 4) =$

$6xy^2\sqrt{5x}$