What is the factored form of x2 − 4x − 5?

2 answers:

6 0

When the coefficient in front of the x^2 term is 1 you can factor a quadratic by finding two numbers such that the sum is the coefficient infront of x and the product is c. So
a+b=-4 and ab=-5 notice that -5 and 1 are solutions since (-5)*1=-5 and 1-5=-4 so you can factor it as (x-5)(x+1).

k0ka [10]3 years ago

4 0

The answer would be D....

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