Question

(1.3.) (7+m)³ expand


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Answer 1

Answer:

Step-by-step explanation:

(7+m)

(a+b)^3

a^3+ b^3+ 3ab (a +b)

7^3+m^3+3*7*m(7+m)

343+m^3+21m(7+m)

343+m^3+147m+21m^2 is the answer