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What must be added to 9x^2-24 x+10 to ma...

What must be added to `9x^2-24 x+10` to make it a whole square?

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Given:
`9x^2-24 x+10`
`=>(3x^2)^2-2(3x)(4)+(4)^2-(4)^2+10`
`=>(3x-4)^2-6`
If we add`6` it becomes `(3x-4)^2 `perfect square.
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RD SHARMA-ALGEBRAIC EXPRESSIONS AND IDENTITIES-All Questions
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