Question

The value of p (x) = x ² + 7 x-9 for
x=-1 is​

Answer 1

Answer:

-15

Step-by-step explanation:

(-1)^2 = 1

7×(-1) = -7

So, 1 -7 -9 = -15

Answer 2

Answer:

Given equation is:

x

2

−7x−18=0

x

2

−9x+2x−18=0

(x−9)(x+2)=0

∴x=9,−2

Hence,

3

, 4 are not the roots of the given equation.

Step-by-step explanation:

I hope it helps you