Step-by-step explanation:
If g(x) = x² + 3x - 6
Then g (-7) can be found by substituting -7 for x in g(x) and solving the equation
⇒ g(-7) = (-7)² + 3(-7) - 6
⇒ g (-7) = 49 - 21 -6
⇒ g (-7) = 22
