Question

What value is added to both sides of the equation x2 − 8x = −10 in order to solve by completing the square?

Answer choices:
a) -8
b) 16
c) -4
d) 4

Answer 1

its just
\((1/2) \times co-efficient ~of~x\)

Answer 2

and then square of that

Answer 3

so what is co-efficient of x?

Answer 4

um 8?idunno

Answer 5

close!

co-efficient of x is the number multiplied with 'x'

here we have \(\Large -8x\)
so co-efficient of x is -8 :)

Answer 6

divide it by 2
then square it,
and you're done

Answer 7

sso 16 :D! thanks again

Answer 8

tf!
welcome ^_^

Answer 9

HHAHA ;)