Question

What’s the answer???(ONLY ANSWER IF YOU KNOW PLEASE)

Answer 1

Answer: B

Step-by-step explanation:

(a + b)³ = (a + b)(a² - ab + b²)

$(\sqrt{2x}$ + $\frac{1}{x})^{3}$ = $(\sqrt{2x}$ + $\frac{1}{x})$$(\sqrt{2x}^{2} - \sqrt{2x}(\frac{1}{x}) +(\frac{1}{x})^{2})$

= $(\sqrt{2x}$ + $\frac{1}{x})(2x - \frac{\sqrt{2x}}{x} +\frac{1}{x^{2}})$

= $(\sqrt{2x}$$(2x - (\frac{\sqrt{2x}}{x}) +\frac{1}{x^{2}})$ + $\frac{1}{x}(2x -\frac{\sqrt{2x}}{x} +\frac{1}{x^{2}})$

= $2x\sqrt{2x} - 2 +\frac{\sqrt{2x} }{x^{2}} + 2 - \frac{\sqrt{2x}} {x^{2}} + \frac{1}{x^{3} }$

= $2x\sqrt{2x}+\frac{1}{x^{3} }$