Question

8a³-64b³ if 2a-4b = 1 and ab= 2
Answer is 49. What is the formula?​

Answer 1

Step-by-step explanation:

a^3-b^3= (a-b)(a^2+ab+b^2)

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

just replace here a =2a

and b =4b and check if answer is 49

or

since a^3-b^3= (a-b)^3+3ab(a-b)

just replace here a =2a

and b =4b and check if answer is 49

Answer 2

Answer:

Answers: 1 ... Astone is thrown with a speed of 20 metre per second at an angle of 53 degrees with the ... 8a³-64b³ if 2a-4b = 1 and ab= 2answer is 49.

Explanation: