asked 12.8k views
2 votes
Am i right yes or no

Am i right yes or no-example-1
asked
User Cassey
by
8.0k points

2 Answers

1 vote
yes for the first and last the middle one should also be x^2+4
answered
User Ahll
by
7.5k points
2 votes

Answer:

All three are correct.

Explanation:

top left one white

(x + 1 + i)( (x + 1 - i)

(x + 1)^2 - i^2

x^2 + 2x + 1 - i^2

x^2 + 2x + 1 + 1

x^2 + 2x + 2 You have this one correct.

Middle White one

(x - 2)^2 - (2i)^2

x^2 - 4x + 4 - 4*i^2

x^2 - 4x + 4 - 4(-1)

x^2 - 4x + 4 + 4

x^2 - 4x + 8 This one is also correct

Bottom White One

(x + 2i)(x - 2i)

x^2 + 2ix - 2ix - 4i^2

x^2 - 4(i^2)

x^2 - 4(-1)

x^2 + 4 This is correct. But what are all the left overs for? Is there more to the question.

answered
User Sean Carpenter
by
7.8k points

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