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3 years ago

Which polynomial represents the sum below? (4x^2+6) + (2x^2+6x+3)

Mathematics

2 answers:

SSSSS [86.1K]3 years ago

7 0

Answer:

Option D - $(4x^2+6)+(2x^2+6x+3)=6x^2+6x+9$

Step-by-step explanation:

Given : Polynomial $(4x^2+6) + (2x^2+6x+3)$

To find : Which polynomial represents the sum below?

Solution :

Step 1 - Write the polynomial

$(4x^2+6)+(2x^2+6x+3)$

Step 2 - Open the parenthesis,

$=4x^2+6+2x^2+6x+3$

Step 3 - Add like terms,

$=6x^2+6x+9$

Therefore, Option D is correct.

$(4x^2+6)+(2x^2+6x+3)=6x^2+6x+9$

katrin2010 [14]3 years ago

6 0

D. Add like terms.
So 4x^2+2x^2=6x^2
6x is only x term
6+3=9

So D. 6x^2+6x+9

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3 years ago

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Step-by-step explanation:

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3 years ago

Which graph represents the polar curve r = 4cos(30)?

stepan [7]

The equation of the polar curve $r = 4\cos(3\theta)$ is an even cosine function.

<h3>Polar curves</h3>

In geometry, polar curves are curves that are represented by the polar coordinates such that they are drawn around a fixed point

The equation of the polar curve is given as:

$r = 4\cos(3\theta)$

To graph the polar curve, we make use of the following representations:

r represents the y-axis
$\theta$ represents the x-axis

Using the above representation, we can graph the polar curve

See attachment for the graph that represents $r = 4\cos(3\theta)$