Question

What value should be added to the expression to create a perfect square?

x2 – 20x

Answer 1

18 -2x so
x =18/2
so 9
Guess thats how its done

Answer 2

Hmmmm thanks for your help

Answer 3

but wait

Answer 4

the answer choices are
–25
25
100
–100

Answer 5

is it a quadratic problem?

Answer 6

yes

Answer 7

Then use this

Answer 8

Okay Thanks!

Answer 9

so whats the answer

Answer 10

100

Answer 11

tell me how
so that i know you have understood it well

Answer 12

well i don't really have the time to explain right now. I am in the middle of an English test and im trying to get my math homework done

Answer 13

But don't worry i understand

Answer 14

lol