Question

Si P(2x-3) = 4x+5 hallar 4P(x) - P(4x)

Answer 1

P(2x-3) = 4x+5

4P(x) - P(4x)

2x-3 = x
x = 3

P(3) = 4(3)+5 = 17

2x-3 = 4x
-2x = 3
x = -3/2

P(-6) = 4(-6)+5 = -19

→ 4P(x) - P(4x) = 4(17)-(-19) = 68+19 = 87

∵ 4P(x) - P(4x) = 87