Question

if a+b = 9 and ab= -22 , find a^2-b^2

Please it’s urgent

Answer 1

Answer:

0

Step-by-step explanation:

a+b=9

ab=-2

a=-2/b

from eq. 1 nd 2 we get

-2/b +b = 9

taking LCM,

-2+b^2=9b

b^2-9b-2=0