14xz+6xy-4yz for x=8y=5and z=7?

Question

14xz+6xy-4yz for x=8y=5and z=7

Answer 1

14(8)(7)+6(8)(5)-4(5)(7)=884

Answer 2

letters/numbers next to one another without a sign means to multiply.

REPLACING

Change every "x" to "8"

Change every "y" to "5"

Change every "z" to "7"

Now your problem should look like

(14)(8)(7) +(6)(8)(5) -(4)(5)(7)

Now simplify

(14)(56) +(6)(40) - (4)(35)

784      +   240      -  140 = 884

Answer 3

14xz+6xy-4yz for x=8, y=5, and z=7

14*8*7 + 6*8*5 - 4*5*7

784 + 240 - 140

884

Answer 4

you lost me at the 14xz hahaha

Answer 5

884