Question

If a square plus b square is 13 and ab is 6 Find a square plus b square

Answer 1

Answer:

If you ask for a^2- b^2 then the answer is 1

Step-by-step explanation:

a^2 + b^2=13

=> (a+b)^2 - 2ab=13

=>(a+b)^2- 2×6 = 13

=>(a+b)^2 =13+12=25

(a-b)^2 = (a+b)^2 - 4ab

= 25 - 4×6

= 25-24. = 1

a-b = +-1