Question

if x=1,y=2,andz=5 find the value of 2x2-y2+2z2​. answer in steps

Answer 1

Step-by-step explanation:

2x^2-y^2+2z^2

2×(1)^2-(2)^2+2×(5)^2. (keeping values of x,y and z)

2×1-4+2×25

2-4+50

-2+50 (2-4=-2)

48