Question

Dada f(x) = 3x ala 2 + 7, calcule f(c),F(c+h) y f(c+h)-f(c) por favor urgente

Answer 1

f(x) = 3X² + 7

f(c) = 3c² + 7

f(c + h) = 3(c + h)² + 7: 

= 3(c² + 2ch + h²) + 7

f(c + h) = 3c² +6ch + 3h² + 7

f(c + h) - f(c) = 3c² + 6ch + 3h² + 7 - (3c² + 7)

f(c + h) - f(c) = 3c² + 6ch + 3h² + 7 - 3c² - 7

f(c + h) - f(c) = 3h² + 6ch