Question

2)
a) if 3a + 2b = 23, ab = 20 find the value of 27a' + 8b​

Answer 1

Answer:

3887

Step-by-step explanation:

Given: -

3a + 2b = 23

ab = 20

(3a + 2b)³ = 27 a³ + 8 b³ + 3(3a)(2b) (3a+2b)

(23)³ = 27a³ + 8b³ + 18(20)(23)

12167= 27a³ + 8b³ + 8280

3887 = 27a³ + 8b³

Ans) 3887