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Question
Use a suitable identity to get the following products.
`(x/2 + (3y)/4)(x/2 + (3y)/4)`
Solution
`(x/2 + (3y)/4)(x/2 + (3y)/4)` = `(x/2 + (3y)/4)^2`
= `(x/2)^2 + 2(x/2)((3y)/4) + ((3y)/4)^2` [(a + b)2 = a2 + 2ab + b2]
= `x^2/4 + (3xy)/4 + (9y^2)/16`
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