Question

সূত্ৰ /(x+a) (x+b)=X2+(a+b)x+ab.
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Answer 1

Answer:

(x+a)(x+b)

=x^2+ax+bd+ab

=x^2+x(a+b)+ab

=x^2+(a+b)x+ab (proved)

Answer 2

Answer:

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