Question

expand(3x+9y+4z)³ step by step​

Answer 1

Answer:

That's cube or square plz tell

Answer 2

Step-by-step explanation:

(3x+9y+4z)^3.

=(3x)^2+(9y)^2+(4z)^2+(3x)(9y)+(9y)(4z)+(4z)(3x) = 9x^2+81y^2+16z^2 +27xy+36yz+12zx

formula===(a)^2+(b)^2+(c)^2+ab+bc+ca