Question

(7k-5l)3-(7k+5l)3
Plzz fast answer

Answer 1

Answer:

-306

Step-by-step explanation:

(7k - 51)3 - (7k + 51)3

= 21k - 153 - 21k - 153

= -306

Hope it helps you.........

Answer 2

Answer:

heya mate ✌

$(7k - 5l)3 - (7k + 5l)3 \\ = 21k - 15l \: - (21 k + 15l) \\ = 21k - 15l - 21k - 15l \\ = - 15l - 15l ( + 21k \: and \: - 21k \: cancelled) \\ = - 30l$

✔ hope it helps u ✔

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