Question

x+5y=9 and xy=4 find x^2+25y^2

Answer 1

x²+25y²
=x²+(5y)²
=(x+5y)²-2x×5y
( using formula a²+b²=(a+b)²-2ab )
=(9)²-10xy
=81-10×4
=81-40
=41

Answer 2

Consider only the part written with red ink.
If my answer helps mark my answer as brainliest