Question

How do you solve `x^2 - 3x - 88 = 0` by completing the square?

Answer 1

x = -8 and x = 11

Explanation:

`x^2 - 3x = 88`
`x^2 - (3/2)x + 9/4 = 88 + 9/4`
`(x - 3/2)^@ = 361/4`
Calculator gives -->
`(x - 3/2) = +- 19/2`
`x = 3/2 +- 19/2 = (3 +- 19)/2`
x = 11 and x = -8