Question

Evaluate using suitable identity. (i) (2 −1/2 ) ^2 (ii) (2x+ y)(2x −y)

PLS PLS PLS ANSWER

Answer 1

Answer:

1) (a=b)² = a²+b²+2ab

2) (a-b) (a+b) = (a²-b²)

now do it yourself using the formula