### Questions (46)

 6 Solve $4+\frac{1}{x}-\frac{1}{x^2}$ using quadratic formula 4 Trying to simplify $\frac{\sqrt{8}-\sqrt{16}}{4-\sqrt{2}} - 2^{1/2}$ into $\frac{-5\sqrt{2}-6}{7}$ 4 Simplify $\sqrt{\frac{162x^6}{16x^4}}$ is $\frac{3\sqrt{2x^2}}{2}$ 3 If the probability of a dog barking one or more times in a given hour is 84%, then what is the probability of a dog barking in 30 minutes? 3 Complex Number: $\frac{(3+i)^2}{(1+2i)^2}$ - cannot arrive at textbook solution

### Reputation (546)

 +5 Simplify $\sqrt{\dfrac{\sqrt{64} + \sqrt{256}}{\sqrt{64}+\sqrt{256}}}$ into $\dfrac{\sqrt{3}}{3}$ +5 When recreating the quadratic formula by completing the square of $ax^2+bx+c=0$ I cannot shorten the right hand side +30 Solve $4+\frac{1}{x}-\frac{1}{x^2}$ using quadratic formula +5 Solve $7x^2+3x=0$ by completing the square?

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