find the product of (1.3x+1.9y)(1.3x-1.9y)
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Answer:
1.3x+1.9y×1.3x-1.9y
so when we multiply 1.3x and 1.3x
so answer will be 1.69x²
then -++=-
3.61y²
answer wil be 1.69x²-3.61y²
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