All categories

2 years ago

Determine if x+3 is a factor of -3x^3+6x^2+6x+9. How do u know

1 answer:

6 0

By the factor theorem, if x + 3 is a factor of f(x) = -3x^3 + 6x^2 + 6x + 9, then f(-3) = 0
f(-3) = -3(-3)^3 + 6(-3)^2 + 6(-3) + 9 = -3(-27) + 6(9) - 18 + 9 = 81 + 54 - 9 = 126.

Therefore, x + 3 is not a factor of the given function

You might be interested in

You know when you sing a song and you think you well be great but in reality you sound like a dying cow no that’s just me ok hah

Alborosie

Answer:

Ummm ok?

Step-by-step explanation:

Where’s the question?

4 0

3 years ago

Read 2 more answers

Your skateboard ramp is 2 3/8 feet high. Your friend's skateboard is 2 2/5 feet high. which skateboard is higher?

Zinaida [17]

Answer:

2-3/8 = 2.375

2-2/5 = 2.4

2.4 - 2.375 = 0.025

Your friend's skateboard ramp is 0.025 foot higher

than your skateboard ramp is.

That's about 1.1% higher . . . 0.3 inch, or about 7.62 milometers.

6 0

3 years ago

If the mean proportional between x and 2 is 4, find x

Anastasy [175]

Answer:

explanation

b2=ac

16=2x

x=8

5 0

3 years ago

Read 2 more answers

How many continents

lukranit [14]

Answer:

Step-by-step explanation:

There are 7 continents on Earth. They are Africa, Antarctica, Asia, Australia, Europe, North America, and South America.

7 0

2 years ago

What is the value of n in this equation 1/2(n-4)-3=3-(2n+3)?

alexdok [17]

Answer:

n = 2

Step-by-step explanation:

Given

$\frac{1}{2}$ (n - 4) - 3 = 3 - (2n + 3)

Multiply through by 2 to clear the fraction

n - 4 - 6 = 6 - 2(2n + 3) ← distribute

n - 10 = 6 - 4n - 6 ( add 4n to both sides )

5n - 10 = 0 ( add 10 to both sides )

5n = 10 ( divide both sides by 5 )

n = 2

6 0

2 years ago