Question

Hasil dari (3-17x+35z) dan (4x+23y-9)

Answer 1

( 3 - 17x + 35z ) + ( 4x + 23y - 9 )
= -17x + 4x + 23y + 35z + 3 - 9
= -13x + 23y +35z - 3

Answer 2

(3-17x+35z)(4x+23y-9)
= 3(4x+23-9) = 12x+69y-27
= 17x(4x+23y-9) = 68x+391xy-171x
= 35z(4x+23y-9) = 140xz+805yz-315z
= 12x+69y-27+68x+391xy-171x+140xz+805yz-315z
= 12x+68x-171x = -91x ,
= -91+69y-27+391xy+140xz+805yz-315z