(fog)(x) = f[g(x)] ...................
Answer:
(y + 14)(y - 14)
Step-by-step explanation:
A difference of squares has the general form
a³ - b² and factors as
(a + b)(a - b)
Given
y² - 196
y² = (y)² ⇒ a = y and 196 = 14² ⇒ b = 14
y² - 196
= y² - 14² = (y + 14)(y - 14) ← difference of squares
Rational ! the number doesn't repeat forever or anything like that. it simplifies nicely.
After discount: $418; total (including tax): $388.74
