1.

Factories: (x + y)(2x + 5) – (x + y)(x + 3)

Answer»

(x + y)(2x + 5) – (x + y)(x + 3) 

= (x + y){(2x + 5) – (x + 3)} 

= (x + y)(2x + 5 – x – 3) 

= (x + y)(2x – x + 5 – 3) 

= (x + y)(x + 2) 

So, 

We get, 

(x + y)(2x + 5) – (x + y)(x + 3) = (x + y)(x + 2)



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