Question

(4a - 5b)3 +(4a+5b)3​

Answer 1

Answer:

$(4a - 5b)3 + (4a + 5b)3 \\ \\ = 12a - 15b + 12a + 15b \\ \\ = 24a \\ \\ ( - 15 \: and \: + 15 \: cancelled)$

hope it helps uH ✔