Question

?

Answer 1

I. 7,-1,1
II. +-7,+-1
III. x=7,-1,1
IV. x=7,-1,1

Answer 2

part I) is just the factors +- 7 and +-1

part II) which root produces a remainder of 0?

Answer 3

7

Answer 4

good

for part III) divide the root 7 into the function and write the resulting quadratic function

Answer 5

so just 7 or sqrt 7

Answer 6

why would it be square root of 7

the root is 7

Answer 7

a root of 7 implies (x-7) is a factor, so divide the function by (x-7)

Answer 8

x^2-1

Answer 9

good, that's the polynomial for part III)

then for part IV just factor that and write the two roots

Answer 10

(x+1)(x-1)

Answer 11

good, so what are the two final roots?

Answer 12

1,-1

Answer 13

good, that's it for p4