Question

Fill in the blanks :
(2a + b)²=4a² +____+b²​

Answer 1

(2a + b)²=4a² + 4ab +b².........

Answer 2

Answer:

4ab

by using identity

(a+b)²=a²+2ab+b²

solution:

(2a+b)²=(2a)²+2(2a)(b)+b²

=4a²+4ab+b²

Step-by-step explanation:

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