Question

2 X + 3 Y - 4 Z the whole square

Answer 1

Answer:4x2+12xy−16xz+9y2−24yz+16z2

Step-by-step explanation:

=(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+12xy−16xz+9y2−24yz+16z2