Question

( 2x + 3y + 4z ) '' =


pakai cara nya

Answer 1

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

= 4x² + 6xy + 8xz + 6xy + 9y² + 12yz + 8xz + 12yz + 16z²
= 4x² + 9y² + 16z² + 12xy + 16xz + 24yz

smgmbntu ya

Answer 2

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

4x" + 6xy + 8xz + 6xy + 9y" + 12yz + 8xz + 12yz + 16z" =  4x" + 12xy + 16xz + 9y" + 24yz + 16z"
insyaallah