Question

Given the function below, find p (-2).
p(x) = x² - 7x

Answer 1

Explanation:

p(x)=
`x^(2)-7x\\`

=>p(-2)=
`(-2)^(2) -7.(-2)`

= 4+14=18

Answer 2

18

Explanation:

to find p(-2), substitute it into the equation!

you can make this easier by factoring x out, so p(x) = x(x-7)

then, plug -2 in

p(-2)=-2(-2-7)

p(-2)=-2(-9)

p(-2)=18