Answer:
x = –7, x = 2, or x = 4 are factors of f(x).
Step-by-step explanation:
Given : f(x) = 5x³ +5x²-170x +280 and x + 7 is one factor .
To find : What are all the roots of the function.
Solution : f(x) = 5x³ +5x²-170x +280 .
We have given that x + 7 is factor that mean x = -7 is factor of f(x )
When we divide f(x) by x +7 we get
5x² -30x +40 =0
Taking common 5 from equation
5( x² -6x +8) =0
On dividing by 5 both sides
x² -6x +8 = 0
On factoring
x² -2x -4x +8 = 0.
Taking common x from first two terms and -4 from last two terms
x ( x -2) -4 (x -2) = 0
On grouping
(x-2) (x-4) = 0
x -2 =0
x =2
x-4 =0
x = 4
Therefore, x = –7, x = 2, or x = 4 are factors of f(x).
More than is another way to say increase, or add.
The expression is
n + 16
Answer:
15.9375
Step-by-step explanation:
Just divide the number of miles over the number of gallons.
Answer:
it is 12x^2 +6x
Step-by-step explanation:
x^2 +8x +16
x^2-144
= 12x^2 + 6x
Brainliest if im right pls? uwu
Answer : $60
Steps for Solving :
$150/10 (to get 10 parts)
=15
15•4 (to get 40%)
=60
