Question

if a-b=7and ab =18;find a+b​

Answer 1

Answer:

(a-b)²=a²+b²-2ab

7² =a²+b²-2*18

49 =a²+b²-36

49+36=a²+b²

85=a²+b²

(a+b)²=a²+b²+2ab

( a+b)²=85+36

= 121

(a+b) =√121

=11

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Answer 2

Step-by-step explanation:

the the answer is is equal to 18 and b is equal to 11 and a + b is equal to 29