Factorise x^2 - a^2 +4ab+4
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Answer:
( a − 2 b ) ( a − 2 b )
Explanation
: = a 2 − 2 ab − 2 a b + 4 b 2= a ( a − 2 b ) − 2 b ( a − 2 b)= ( a − 2 b ) ( a − 2 b )
Step-by-step explanation:
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