Question

PLEASE ANSWERERRREEERRR

Answer 1

the operation:

$2*10^1 - 4*10^0 = 20 - 4 = 16$

Gives a square number.

How to get a perfect square?

A perfect square is the product of a number and itself.

As you can see in the example, 16 is a square number. Then let's try to get 16.

To get 16 we can use the difference:

20 - 4

So the first therm needs to be equal to 20, and the second equal to 4.

To write 20 in scientific notation we have:

$2*10^1$

To write 4 in in scientific notation:

$4*10^0$

Then the operation:

$2*10^1 - 4*10^0 = 20 - 4 = 16$

Gives a square number.

If you want to learn more about square numbers:

brainly.com/question/21694652

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