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Question
Find the square root of the following
(4x2 – 9x + 2)(7x2 – 13x – 2)(28x2 – 3x – 1)
Solution
`sqrt((4x^2 - 9x + 2)(7x^2 - 13x - 2)(28x^2 - 3x - 1)`
= `sqrt((x - 2)(4x - 1)(x - 2)(7x + 1)(4x - 1)(7x + 1)`
= `sqrt((x - 2)^2 (4x - 1)^2 (7x + 1)^2`
= |(x – 2)(4x – 1)(7x + 1)|
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