Question

2a-3b=5 then find the value of 8a^3-27b^3-125​

Answer 1

Answer:

Give:

2a=3b-5  

And the given expression is

8a^3-27b^3+90ab+125  

Which can also be written as

(2a)^3 -27b^3 +45b(2a)+125  

Substituting the vale of 2a

(3b-5)^3-27b^3+45b(3b-5)+125 /

= 27b^3 -135b^2+225b-125-27b^3 +135b^2 -225b+125 \

=0

Step-by-step explanation:

Answer 2

Answer:

thanks for free points ❤️