Question

if a^+b^=58 and a-b =4 find ab​

Answer 1

Answer:

a²+b² = 58

a-b = 4

a²+b² = (a-b)²+2ab

58 = 4²+2ab

58 = 16+2ab

58-16 = 2ab

42 = 2ab

42/2 = ab

21 = ab

ab = 21

Read my bio once