Question

If ab=4 and a-b=8,then find a^2+b^2​

Answer 1

Step-by-step explanation:

ab=4 and a-b=8

then by formula

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

(8)^2=a^2+b^2-2×4 ( substituting the values of a^2+b^2 and ab)

64=a^2+b^2-8

64-8=a^2+b^2

a^2+b^2=56

please rate my answer

Answer 2

Answer:

a² + b² = (a-b)² + 2ab

= 8² + (2 × 4)

= 64 + 8

therefore,

a² + b² = 72

PLEASE MARK ME THE BRAINLIEST IF IT HELPED YOU........