Question

If x = 0, solve for y.
y = 2 x 4^x
y = [?]

Answer 1

Answer: y=2

Explanation:

x = 0
y =
`2` ×
`4^(x)`
y =
`2` ×
`4^(0)`
y =
`2` ×
`1`
y =
`2`

Answer 2

Vì x=0 nên 4^(0) =1
Suy ra Y = 2×1 = 2
Vậy y=2