Question

help! What number must you add to the polynomial below to complete the square?

x2 - 12x

Answer 1

you take half of the x coefficient

then you square that previous result

Answer 2

but like how I've never learn this beforez!

Answer 3

in this case, the x coefficient is -12

Answer 4

take half of this to get -6

then square it to get (-6)^2 = 36

so you must add 36 to make this a perfect square

Answer 5

is 6

Answer 6

right or 36

Answer 7

it's 36

Answer 8

k

Answer 9

What number must you add to the polynomial below to complete the square?

x2 + 7x

Answer 10

is the same right

Answer 11

?

Answer 12

yes you use the same idea

Answer 13

so half of 7 is 3.5 or 14