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Which expression is a difference of squares?

A). 16h^2-21t^10

B). 9m^2-49n^6

C). 32a^2-81n^2

D). 100x^2-10y^4


Which Expression Is A Difference Of Squares A 16h221t10 B 9m249n6 C 32a281n2 D 100x210y4 class=

Sagot :

Answer:

[tex]9m^4 - 49n^6[/tex]

Step-by-step explanation:

Hello!

For an equation to be a Difference of Squares, the coefficient of the variables has to be Perfect Squares (product of a number squared) and the operation has to be a subtraction between the two terms.

The only option that meets the requirements is  [tex]9m^4 - 49n^6[/tex], as 9 and 49 are perfect squares.

In Option 1, 21 is not a perfect square.

In Option 3, 32 is not a perfect square.

In Option 4, 10 is not a perfect square.