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Question
Solve the following : `("x" - 1/2)^2 = 4`
Solution
`("x" - 1/2)^2 = 4`
`"x"^2 - "x" + 1/4 = 4`
`"x"^2 - "x" - 15/4 = 0`
`"x"^2 + 3/2 "x" - 5/2 "x" - 15/4 = 0`
`"x" ("x" + 3/2) - 5/2 ("x" + 3/2) = 0`
`("x" + 3/2)("x" - 5/2) = 0`
x = `-3/2` , x = `5/2`
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