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Factorise the following expressions. 49y^2 +84yz+36z^2

Factorise the following expressions.
 49y^2 +84yz+36z^2

Grade:12

1 Answers

Harshit Singh
askIITians Faculty 5964 Points
6 months ago
Dear Student

49y^2 +84yz+36z^2
=(7y)^2+2×7y×6z+(6z)^2
= (7y+6z)^2
Using identity: (x+y)^2= x^2+2xy+y^2

Thanks

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