Question

(7a -5b) (49a²+35ab+25ab)

Answer 1

(a-b)(a^2+ab+b^2)= a^3-b^3
7a^3 - 5b^3

Answer 2

Answer:

pls mark it as brainliest

Step-by-step explanation:

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

Hence, (7a-5b)(49a^2+35ab+25b^2)

=(7a-5b)[(7a)^2+(7a*5b)+(5b)^2]

=[(7a)^3-(5b)^3]

where, a=(7a)^3 and b=(5b)^3