Question

if a minus b equal to 7 and a b equal to 9 find a ² + b ²​

Answer 1

Step-by-step explanation:

If a-b = 7 and ab=9, then what is a^2+b^2?

a-b- 7. On squaring we get

a^2–2ab+b^2 = 49.

So a^2+b^2 = 49+2ab = 49+2x9 = 49+18 = 67. Answer.

Answer 2

Answer:

hope it will help you dear