If x= √5 and y=2√5,evaluate x²+y²?
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Answered by
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Answer: 25
Step-by-step explanation:
x= root 5
y= 2 root 5
y^2 + y^2
= root5^2 +2root5^2
= 5+2root5^2
=5+4x5
=5+20
=25
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