Question

Find the solutions of the quadratic equation -9c² +2 +3 = 0.

Answer 1

Given that,

An equation : -9c² +2c +3 = 0

To find,

Find the value of x.

Solution,

We have, -9c² +2c +3 = 0

We can solve it using the formula as follows :

`x=(-b\pm √(b^2-4ac))/(2a)`

Here, a = -9, b = 2 and c =3

Put the values,

`c=(-2\pm √((2)^2-4(-9)(3)))/(2(-9))\\\\c=\frac{-2+\sqrt{(2)^(2)-4(-9)(3)}}{2(-9)}, \frac{-2-\sqrt{(2)^(2)-4(-9)(3)}}{2(-9)}\\\\c=-0.47, 0.69`

So, the solution are -0.47 and 0.69.