Question

If m (x)=x²-3, and r (x) = 7x + 6, find m (5) - r (9)

Answer 1

-47

Explanation:

we insert the given values in the equation to calculate the required values

m(x) = 5² - 3

= 25 - 3

= 22

R(X) = 7x 9 + 6

= 69

Thus m (5) - r (9) = 22 - 69

= -47