Answer:
first option
Step-by-step explanation:
If ( x + h) is a factor of f(x) then f(- h) = 0 , then
If (x + 1) is a factor of f(x) then f(- 1) = 0
f(- 1) = 7 - 5(- 1)³ - 10(- 1)² + 2(- 1)
= 7(1) - 5(- 1) - 10(1) - 2
= 7 + 5 - 10 - 2
= 12 - 12
= 0
Since f(- 1) = 0 then (x + 1) is a factor of f(x)
Answer:
x^2+5x+5
Step-by-step explanation:
9.2 kg of apples and pears combined
4/5 of 9.2 kg are apples
4/5=0.8=80%
100% 9.2 kg
80%. X kg
X= 80 • 9.2/100
X=736/100
X=7.36 kg of apples
9.2kg-7.36kg=1.84 kg of pears
Answer:
-175
Step-by-step explanation:
230 = 55-y
230 - 55=-y
175= - y
y= -175
Just move the numbers to one side and variables to the other
Answer:
x-3
Step-by-step explanation:
f(x) = 3x – 2
g(x) = 2x + 1
(f – g)(x) = 3x-2 - ( 2x+1)
Distribute the minus sign
= 3x-2 -2x -1
= x -3