Question

Which expression is equivalent to 36x² - 25?

O (18x)²+(-5)²
O (18x)²-(5)²
O (6x)²+(-5)²
O (6x)²-(5)²

Answer 1

`\boxed{ \rm(6x)²-(5)²}`

Explanation:

Given expression/polynomial :

`3 6{x}^(2) - 25`

Let's evaluate.

We can re-write the polynomial as

• 
  `6 {}^(2) x {}^(2) - 5 {}^(2)`

Further

• 
  `{(6x) {}^(2) - 5 {}^(2) }`

Hence, the expression is equivalent to last Choice, (6x)²-(5)².

-Regards, Hannah :)