Need to find (5sqrt(2) +1) ( 5sqrt(2) -1))

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Guest Apr 30, 2015

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Best Answer

5√2*5√2 - 1

= 25*2 - 1

= 49 (answer)

EDIT: oops, the solution by CPhil wasn't showing when I added mine. NVM

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Badinage Apr 30, 2015

Badinage · Answer 1 · 2015-04-30T02:29:33

5√2*5√2 - 1

= 25*2 - 1

= 49 (answer)

EDIT: oops, the solution by CPhil wasn't showing when I added mine. NVM

CPhill · Answer 2 · 2015-04-30T02:43:22

(5sqrt(2) +1) ( 5sqrt(2) -1)) .....so we have.....

[5sqrt(2)]^2 - 1

25 * 2 - 1 =

50 - 1 =

49