Question

If a-b=7 ab=9 then a² +b²=
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Answer 1

Answer:

a² + b² = 31

Step-by-step explanation:

( a - b ) ² = a² + b² - 2ab

SUBSTITUTING THE VALUES GIVEN

( 7 )² = a² + b² - 2(9)

49 = a² + b² - 18

a² + b² = 31

Answer 2

Answer:

This is your answer

Hope it helps you!!