Question

II. DO AS DIRECTED :

1. Expand (2m+ 5)2 using Identity.

2. Factorise : x

2 + 8x +15

3. Expand (51)3 . Using Identity.

4. Identify the centroid of PQR 4. Identify the centroid of PQR​

Answer 1

Answer:

Refer to attached images for the answer.