Question

which number completes the square x^2-4x+_

Answer 1

divide middle term by 2 and square it

Answer 2

can somebody explain me the question?

Answer 3

middle term= co-efficient of x

Answer 4

so @nemi what is the co-efficient of x here ?

Answer 5

yes, thats correct as @hartnn stated

Answer 6

here, middle term =-4
its half = -2
its square =4
so the required number is 4.
did u understand this ?

Answer 7

bdw,
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