Question

complete the square x^2-20x+__ a) 100 b)10 c)-10 d)-100

Answer 1

1) divide the co-efficient of x, by 2
2) square it.

so, whats the co-efficient of x, can you figure out ?

Answer 2

20 is the co- efficient of x

Answer 3

100

Answer 4

more precisely, "\(-20\)" is the co-efficient , but either way , you will get 100 , which is correct :)

Answer 5

yay thank you

Answer 6

your welcome ^_^