Question

Help

Answer 1

the first part is simply asking you to expand (x+1)^2 using foil

(x+1)^2 = (x+1)(x+1) = ?

Answer 2

x^2+2

Answer 3

first, outer, inner, last

Answer 4

x^2*1

Answer 5

x^2+1

Answer 6

2x+1

Answer 7

x * x = ?

Answer 8

x^2

Answer 9

good, now let's do outer

Answer 10

1x

Answer 11

good, now inner

Answer 12

1x

Answer 13

good, now last terms

Answer 14

1

Answer 15

so x^2+2x+1

Answer 16

good, now we plug that back into the original problem to get

y - 3 = -2(x^2+2x+1) = answer for part I

Answer 17

ookay now for part 2

Answer 18

just distribute so

Answer 19

so, by "distribute the -2" it just means multiply every term by (-2)

Answer 20

(not the y - 3) part just the right hand side

Answer 21

y-3=-2x^2-4x-2

Answer 22

awesome, that's it for part II

for part III solve for y by adding 3 to both sides

Answer 23

how do you know there is a part III

Answer 24

I'm still looking at the original document

Answer 25

oh okay

Answer 26

well to solve it would be

Answer 27

\[y=\frac{ 2x^2-4x-2 }{ 3 }\]

Answer 28

add 3, not divide by 3

Answer 29

y- 3 + 3 =-2x^2-4x-2 + 3

then just simplify both sides

Answer 30

2x^2-4x+1

Answer 31

good, just don't forget the y = part

so y = 2x^2-4x+1 = your ans