SOLUTION: Root 20 - root 80 + root 45

SOLUTION: Root 20 - root 80 + root 45

Algebra.Com

Question 749986: Root 20 - root 80 + root 45
Answer by kibauu(44) (Show Source): You can put this solution on YOUR website!
=
notice that 4,16 and 9 are quadratic number, you just have to root them
you should have
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