Question

Use a calculator to find approximate solutions of the equation. 7.66x^2+2.72x= 5.33

Answer 1

use the quadratic formula

Answer 2

=1.03039, 0.6753

Answer 3

\[x=\frac{-b+/-\sqrt{b^{2}-4ac}}{2a}\]

Answer 4

If you're looking for approximate solutions, you can use trial and error, that is trying different values of x and seeing whether the output if lower or higher than 5.33. However, for accuracy, you should (as mentioned above) use the quadratic formula.