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Find the product. (x-2y+3)(x^2+4y^2+2xy+...

Find the product. `(x-2y+3)(x^2+4y^2+2xy+6y-3x+9)`

Text Solution

Verified by Experts

The correct Answer is:
`x^3-8y^3 +27+18xy`
Given product `= [x+(-2y)+3]xx[x^2+(-2y)^2+3^2-x xx (-2y)-(-2y)xx3-3x]`
` = x^3 +(-2y)^3+3^3-3xx x xx (-2y)xx 3`
`=x^3-8y^3+27+18xy`.
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