we are given
x^2-4x-5
we can use formula
x^2-(a+b)x+ab=(x-a)(x-b)
so, we have
a+b=4
ab=-5
now, we can solve for a and b
and we get
a=5, b=-1
now, we can plug it in formula
x^2-4x-5=(x-5)(x+1) ............Answer
C. 9^4
when dividing with exponents, i usually just look at the exponents and subract them so i did 12-8 for this problem
-6 7/8 /(-3 3/4)
55/8X4/15
11/6
1 5/6
Answer:
d
Step-by-step explanation:
f(3)=5(3)²-7(4(3)+3))
=45-105
= -60