1.

Expand the followiner (2x + 3y + 42)2g:

Answer»

(2x+3y+4z)(2x+3y+4z) = 2x*2x+3y*3y+4z*4z+2(2x)(3y)+2(3y)(4z)+2(4z)(2x) = 4x*x+9y*y+16z*z+12xy+24yz+16xz



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