Question

If x² + y = 25;xy = 12 find x-1square +y-1square​

Answer 1

Step-by-step explanation:

given:x square + y square =25 and xy=12

formula (a+b)2=a2+b2+2ab

so (x+y)2=x2+y2+2xy

(x+y)2 =25+2×12

(x+y)2 =25+24

(x+y)2 =49

(x+y)2 =7(ans)

hope u have got ur ans

Answer 2

13 is the answer
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