Question

Evaluate--- 5a-b X 5b-cX5c-a

Answer 1

Hi there

Your answer is :-

5a - b × 5b - c × 5c - a

5a - 5b^2 - 5c^2 - a

4a - 5b^2 - 5c^2 ( Ans )


Thank You

Answer 2

$5a - b \times 5b - c \times5c - a \\ = 5a - 5 { {b}^{2} - 5 {c }^{2} } - a \\ = 4a - 5 { {b}^{2} - 5} {c}^{2}$
hope this answer will help you