Question

find the value of the following expressions for x=2
a) x+4
b) 19-5x-x^2​

Answer 1

Step-by-step explanation:

$x + 4 \\ = 2 + 4 \\ =6 \\ the second answer is \\ = 19 - 5x - {x}^{2} \\ = 19 - 5(2) - {2}^{2} \\ = 19 - 10 - 4 \\ = 19 - 14 \\ = 5$