Which of the following represents "four times the square of a number is thirty-six"?
a) 42x = 36
b) 4x2 = 36
c) (4x)2 = 36

Answer B )  4 x² =  36 .

Step-by-step explanation:

Given  : four times the square of a number is thirty-six".

To find : Which of the following represents the statement.

Solution : We have given  four times the square of a number is thirty-six".

Let the number  = x

According to question :

Square of the number = x².

4 times square of the number is 36  

4 x² =  36 .

Therefore, Answer B )  4 x² =  36 .

-6 is the correct option from the above given options