Question

9.
If a+b=5, ab= -2, the value of a2 + b2 is
(a) 21
(b) 29
(c) 23
(d) 27​

Answer 1

Answer:

27 is the answer of your given question.

NOW MARK ME AS BRAINLIEST

Answer 2

Answer:

option (b) 29 is correct

a^2+b^2 = 29

Step-by-step explanation:

given that a+b = 5 ,ab= - 2

now a^2+b^2

=(a+b)^2 -2ab

=5^2 - 2.( - 2 )

=25 - ( - 4)

=25+4

=29