Question

If a - 2b = 4, ab = 6, find a3-8b3​

Answer 1

Answer:

a-2b = 4 ab = 6

From equation first we will get,

a = 4-2b

then put this value in ab=6

so we get,

(4-2b) b = 6

after solving this value we will get,

4b-2bxb = 6

so, we will get different values of b which are

(b=

Answer 2

Answer:

Step-by-step explanation:

a-2b=4

ab=6

(a-2b)^3=a^3-2b^3-3ax2b(a-2b)

4^3=a^3-8b^3-6abx4

64=a^3-8b^3-6x6(4)

64=a^3-8b^3-144

64+144=a^3-8b^3

208=a^3-8b^3

• Final answer= 208