Question

solve the equation 5x2 - 3x - 4 = 0 to 3 decimal places. (using the formula)​

Answer 1

Let's find the discriminant.

$\tt 5x2−3x−4=0$

Step 1: Find discriminant with $\tt a=5, b=-3, c=-4.$

$\tt b^2−4ac$

$\tt=(−3)2−4(5)(−4)$

$\tt =89$

$\tt Answer:89$