Maths
posted by A on .
If the quadratic kx^2−14x+1 is a perfect square polynomial, what is the value of k

Because of the 1 at the end it has to be half of the middle coefficient of the middle term, and then squared
that is, k = 49
check:
49x^2  14x + 1
= (7x1)(7x1)
=(7x1)^2