If x=1, y=2, z= -1, find the value of each of the following expressions. a. (x^2-y^2)(3y-2z)
b.2xy^2-3x^2y-4y^2z^2
Attachments:
Answers
Answered by
1
part a
(1^2-2^2)(3×2-2×-1)
=(1-4)(6-2)
=-3×4
=-12
part b
2×2^2 - 3×2^2×2 - 4×2^2×-1^2
8-72-64×-1
-128×-1
128
(1^2-2^2)(3×2-2×-1)
=(1-4)(6-2)
=-3×4
=-12
part b
2×2^2 - 3×2^2×2 - 4×2^2×-1^2
8-72-64×-1
-128×-1
128
Similar questions