Question

Multiply (1/3√x-3/2√y)^2

Answer 1

Answer: $\frac{x}{9} -\sqrt{xy} +\frac{9y}{4}$

Step-by-step explanation:

• $(a - b)^2 = a^2 - 2ab + b^2$

$(\frac{\sqrt{x} }{3} -\frac{3\sqrt{y} }{2} )^2=(\frac{\sqrt{x} }{3} )^2-2*\frac{\sqrt{x} }{3} *\frac{3\sqrt{y} }{2} +(\frac{3\sqrt{y} }{2} )^2 = \frac{x}{9} -\sqrt{x} \sqrt{y} +\frac{9y}{4} =\frac{x}{9} -\sqrt{xy} +\frac{9y}{4}$