Question

find+the+product+of+(6x-y+z)(6x-y+z)

Answer 1

you want to know ,

(6x-y+z)² = ?

use formula (a+b+c)² = a²+b²+c²+2(ab+bc+ca)

putting all values we get,

(6x-y+z)² = 36x²+y²+z²+2(-6xy -yz +6xz)

= (36x²+y²+z²+12xz -12xy -2yz)