factorise ( x+y)2+9(x +y)+20
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(x + y)² + 9(x + y) + 20 = ( x + y + 5 ) ( x + y + 4 )
Given :
The expression (x + y)² + 9(x + y) + 20
To find :
Factorise the expression
Solution :
Step 1 of 2 :
Write down the given expression
The given expression is (x + y)² + 9(x + y) + 20
Step 2 of 2 :
Factorise the expression
Let a = x + y
Then the given expression
= ( x + y + 5 ) ( x + y + 4 ) [ Putting the value of a ]
(x + y)² + 9(x + y) + 20 = ( x + y + 5 ) ( x + y + 4 )
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