Question

using the indenties evaluate the following a) (105) square​

Answer 1

Answer:

We will try to write 105 in terms of the nearest hundred. Since, 105 is close to 100. So, we can write it as 105=100+5. Then, we can apply the algebraic formula and substitute the values into that we will get the final answer.

Step-by-step explanation:

Hope this is useful for you.

Answer 2

Answer:

11025

Step by step explanation :

=> (105)²

=> (100 + 5)²

=> (100)² + 2×100×5 + (5)²

=> 10000 + 1000 + 25

=> 11025

Identity used : (a+b)² = a²+2ab+b²