Question

(2 - √7)(2 + √7) multiply and simplify

Answer 1

Do you know (a-b)(a+b) = \[a^{2} - b ^{2}\]

Answer 2

do you just want the answer?

Answer 3

yes, I just need the answer

Answer 4

then its -3 :)

Answer 5

kk thanks :)

Answer 6

welcome :)

Answer 7

(2- sqrt(7))(2+ sqrt(7)) is equal to 4 because -7 and +7 cancle out and 2*2 is 4

Answer 8

understand?

Answer 9

kind of...

Answer 10

how is it 4?