Question

Can somebody please help with these two questions?

Answer 1

#3: x is approximately 0.37, -5.37, #4: x is approximately 4.19, -1.19

Explanation:

You can solve using the quadratic equation or by solving with the perfect square

`\frac{-b+/-\sqrt{b^(2)-4ac} }{2a}` =
`x^(2)+5x-2=0\\ \frac{-5+/-\sqrt{5^(2)-4(1)(-2) }}{2(1)}`

x is approximately 0.37, -5.37