Use the quadratic formula to solve the first one
\(x = \frac{-3+ \sqrt{ 3^{2}-4(2)(5) } }{2*2}\)
\(x = \frac{-3 + \sqrt{9 - 40} }{4}\)
\(x = \frac{-3 + \sqrt{-31} }{4}\)
\(x = \frac{-3 + i \sqrt{31} }{4}\)
Final answer is D
2nd problem is as simple
\(\sqrt{a - r} + m = y\) - Given
\(\sqrt{a - r} = y - m\) - Subtract m from both sides
a - r =y^2 - 2my + m^2 - square both sides
a = y^2 - 2my + m^2 + r - add r to both sides
Answer on this one is D
