Thursday

August 21, 2014

August 21, 2014

Posted by **Joey** on Friday, April 18, 2008 at 6:39pm.

answer is 2^2 and 4^2 (?)

- algebra problem -
**Anonymous**, Friday, April 18, 2008 at 7:00pmYes, that looks right.

- algebra problem -
**Damon**, Friday, April 18, 2008 at 8:03pma b

a^2+b^2 = 20

a = b+2

(b+2)^2 + b^2 = 20

b^2 + 4 b + 4 + b^2 = 20

2 b^2 + 4 b -16 = 0

b^2 + 2 b - 8 = 0

(b-2)(b+4 = 0

b = 2

a = 4

so number is indeed

42

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