Question

if a^4 +2a^2b^2+b^4=100, what is a^2 + b^2

Answer 1

(a^2+b^2)^2=100
so
a^2+b^2=plus or minus 10

Answer 2

lols ^

Answer 3

how did that get 8 medals

Answer 4

8-5 medals lol

Answer 5

talk about doing maths without thinking !

Answer 6

can a sum of squares be negative?

Answer 7

think imaginary!

Answer 8

still think u are wrong :|

Answer 9

a=0 a^2=0
b=isqrt{10} b^2=10i^2=-10
a^2+b^2=0+(-10)=-10

Answer 10

what do you think now elecengineer?

Answer 11

what about the 2a^2b^2

Answer 12

remember
(a+b)^2=a^2+2ab+b^2
so
(a^2+b^2)^2=a^4+2a^2b^2+b^4