Select the factors of x^2 − 14x + 49. (x + 49)(x + 1) (x + 7)(x + 7) (x − 7)(x − 7) (x − 49)(x − 1) Question Select the factors of x^2 − 14x + 49. (x + 49)(x + 1) (x + 7)(x + 7) (x − 7)(x − 7) (x − 49)(x − 1) in progress 0 Math Iris 12 hours 2021-09-11T06:19:24+00:00 2021-09-11T06:19:24+00:00 1 Answer 0

## Answers ( )

Answer: The third choice, (x-7)(x-7)Step-by-step explanation:Given,

Let’s check the first one, 49x+x = 50x, not even right.

The second one, 7x+7x = 14x, it’s wrong because it’s -14x and not 14x

Third, -7x-7x = -14x which is right, (-7)(-7) = 49 which is right

Fourth, -49x-x = -50x not right.

Also for the second and third choices, you can convert it to perfect square

The formula of perfect square:

a = 1 and b = 7 so… From

=

While (x-7)^2

So the answer is the third choice.