Here, a bit of algebraic juice can help in solving the below math challenge.

Following the pattern, you will observe a "trick" that you can make use to solve the challenge later.

2

^{2}- 1

^{2}= 3

3

^{2}- 2

^{2}= 5

6

^{2}- 5

^{2}= 11

11

^{2}- 9

^{2}= 40

The above equations are done without detailed written working, just simple mental calculation.

**Challenge:**

16

^{2}- 14

^{2}= ??

*Do it*

**without**calculator.What is the answer to the above? At the comment session, please.

Hmmm........ tick tock tick tock

.

## 2 comments:

60 is the answer.

(16 + 14)(16 - 14) = (30)(2)

Right you are! Good!

Post a Comment