All categories

3 years ago

Factor completely. 2x^4 + 4x^3 - 30x^2 =

Mathematics

2 answers:

Aleksandr [31]3 years ago

8 0

Answer:

2x^2(x + 5)(x - 3).

Step-by-step explanation:

The Greatest Common Factor is 2x^2, so:

2x^4 + 4x^3 - 30x^2

= 2x^2(x^2 + 2x - 15) Now we factor the quadratic in the parentheses:

= 2x^2(x + 5)(x - 3).

den301095 [7]3 years ago

6 0

Answer:

$2x^2(x-3)(x+5)$

Step-by-step explanation:

The first thing that you can do is to factor out an x^2 from the expression.

x^2(2x^2+4x-30)

The next step is to factor out a 2.

2x^2(x^2+2x-15)

Finally, you can factor the quadratic inside.

2x^2(x-3)(x+5)

And now you're finished! Hope this helps!

You might be interested in

2x+2(1960/x)=200 please help for math hw

sp2606 [1]

Two solutions:

1. x =(100-√2160)/2=50-6√ 15 = 26.762

2. x =(100+√2160)/2=50+6√ 15 = 73.238

3 0

3 years ago

Help!<br> Which answer is correct?

Luda [366]

Well, since the graph starts at (0,50), making our y-intercept 50, we can knock off D as an option.

The next step is to find the slope. To do this, find two points and subtract the y values over the x values. (Just make sure that whichever y value you start with - start with the same x value).

So we have >>> (50, 200) and (0,50) from earlier.

200 - 50 / 50 - 0 = 150/50 or 3/1, or 3.

This makes the correct answer A since the equation is represented as y = mx + b, where m is the slope and m has a value of 3.

7 0

3 years ago

1) f(x) = 2x + 4, g(x) = 4x2 + 1; Find (g ∘ f)(0).

Sholpan [36]

Answer:

Step-by-step explanation:

f(x) = 2x + 4

g(x) = 4x² + 1

In order to find (g ∘ f)(0) we must first find

(g ° f )(x)

To find (g ° f )(x) substitute f(x) into g(x) that's for every x in g(x) replace it with f(x)

That's

We have

Now to find (g ∘ f)(0) substitute the value of x that's 0 into (g ∘ f)(0)

We have

We have the final answer as

Hope this helps you

8 0

4 years ago

Please try and solve it

astraxan [27]

This answer would be y=5

7 0

3 years ago

HELP!!!!!!!!!! AP CALCULUS AB

raketka [301]

Answer:

$\lim_{x \to 5^{-}} f(x)= 54$

$\lim_{x \to 5^{+}} f(x) = -17$

Step-by-step explanation:

+ means we are approaching from the right

- means we are approaching from the left

We are given that if x < 5, it is x² + 5x + 4

So to find $\lim_{x \to 5^{-}} f(x)$ we would plug in 5 into that piecewise function part:

5² + 5(5) + 4 = 54

We would be approaching y = 54 if we approach from the left.

We are given that x > 5, it is -4x + 3

So to find $\lim_{x \to 5^{+}} f(x)$ we would plug in 5 into that piecewise function part:

-4(5) + 3 = -17

We would approach y = -17 if we approached from the right.

8 0

3 years ago

Read 2 more answers