Question

(v) 4xyz - 2xy + 3xyz when x = -1, y = 2 and z= 1.
(vi) 5 + 4x2 - 4x + 2a when x = 3 and a = 5.
117​

Answer 1

Answer:

(v) -8

(vi) 51

Step-by-step explanation:

4(-1)(2)(1)-2(-1)(2)+3(-1)(2)(1)=-8+4-4=-8

5+4x2-4x+2a=5+4(3)2+4(3)+2(5)=5+24+12+10=51