Question

1. Explain (2x+ 3y +4z)²​

Answer 1

Step-by-step explanation:

see answer...................

Answer 2

Answer:

(4x^2)+(9y^2)+(16z^2)+12xy+24yz+16zx

Step-by-step explanation:

(2x+3y+4z)^2

(2x)^2+(3y)^2+(4z)^2. (x+y+z)^2=x^2+y^2+z^2+2xy+2yz+2xz (indentity we use)

(2x)^2+(3y)^2+(4z)^2+2×2x×3y+2×3y×4z+2×4z×2x.

(4x^2)+(6y^2)+(8z^2)+12xy+24yz+16zx