factorize :- 1. х2 – 3xy – 40y2
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0
is it 40 or 4. .....
.............
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if it is 4 it can solve
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10
Answer:
=x²-8xy+5xy-40y²
=x(x-8y)+5y(x-8y)
=(x-8y)(x+5y)
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