If a>3 +b>3 =9 and a+b = 3 ,find ab
Answers
Answered by
2
Answer:
Step-by-step explanation:
a³ + b³ = 9
a + b = 3
a³ + b³ = ( a + b )³ - 3ab(a + b)
9 = 3³ - 3ab x 3
9 = 27 - 9ab
9ab = 18
ab = 2
Similar questions