Question

if (x+y)= 7, xy = 12 find x² + y².​

Answer 1

Answer:

$\huge\bf\underline\red{AnSweR:}$

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

$= 49$

${x }^{2} + {y}^{2} = 49 - 2 \times 12$

$= 25$

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Answer 2

Answer:

Step-by-step explanation:(x+y)^2=x^2+y^2+2xy.

(7)^2=x^2+y^2+2×12

49=x^2+y^2+24

49-24=x^2+y^2

25=x^2+y^2

Step-by-step explanation:

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