Question

if x+y =11and xy=24 then x²+y²equal to
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Answer 1

Answer:

73

Explanation:

x+y=11

xy=24

$( {x}^{2} + {y}^{2} ) = {(x + y)}^{2} - 2xy$

Solving the RHS

${(x + y)}^{2} - 2xy \\ = {11}^{2} - 2 \times 24 \\ = 121 - 48 \\ = 73$