F(x) = x^2 - 4x -5 find the following

1 Simplify 4\times -54×−5 to -20−20.

2-(-20)

2−(−20)

2 Remove parentheses.

2+20

2+20

3 Simplify.

22

22

it shoild be o

step-by-step explanation:

step-by-step explanation:

no, her answer is not correct.   we square the lengths of all sides and then determine whether the pythagorean theorem holds here:

9² + 15² = 306.   this is not equal to the square of the longest side ( that square being 395.   answer c is correct.