Question

if a-b is equal to 4 and a + b is equal to 6 find a square + b square

Answer 1

(a+b)^2+(a-b)^2= 2 (a^2+b^2)
36+16=2 (a^2+b^2)
52/2= (a^2+b^2)
26= a^2+b^2
I hope it is helpful for u