Question

(5-√11)(5-√11)

1) 36
2) 14
3) 25-10√11
4) 25-√11

Answer 1

The right answer isn't among the options.

Answer 2

25 + 11 - 2*5√11
36 - 10√11

the right ans is 36 - 10√11

Answer 3

So would i be better off guessing 1 or 3?

Answer 4

25-2(5*sqrt11)+11, 25-10*sqrt(11)+11, 36-10*sqrt(11)

There's the answer.

Answer 5

Are you sure you didn't mean: (5-√11)(5+√11)

Answer 6

Wow they did

Answer 7

Im sorry

Answer 8

Use this: (a-b)(a+b)=a^2-b^2

Answer 9

if it was (5-√11)(5+√11) = (5)² - (√11)² = 25 - 11 = 14

so 2) 14 is the right ans

Answer 10

Thank you both