Question

find the value of a²+b² if (a-b) = 7 and ab=18​

Answer 1

Answer:

it could be a+b = 7 anyhow answer is 13

Step-by-step explanation:

(a+b)^2 = a^2 + b^2 + 2ab

(7)^2 = a^2 + b^2 + 2(18)

49 = a^2 + b^2 + 36

a^2 + b^2 = 49 - 36 = 13

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