Question

If (a+b) = 2 and (a-b) =10 then find value of
A. a square + b square
B. ab

Answer 1

ab=2*(-4)=-8
It is helpful for you

Answer 2

solve the equation a+b = 2 and a-b = 10
then you will get a=6 and b = -4
A.
$6 { }^{2} + ( - 4) {}^{2}$
$= 36 + 16$
$= 52$
B.
$6 \times - 4$
$= - 24$
I hope this helps you