All categories

3 years ago

10. Find the coefficient of x term in the expansion of (2x - 5)(x2 – 3x2 + 4).

Mathematics

1 answer:

m_a_m_a [10]3 years ago

8 0

Answer:coefficient of x term is 8

Step-by-step explanation:I(2x-5)(x2-3x2+4)

(2x-5)(-2x2+4)

-4x3+8x+10x2-20

coefficient of x is 8

You might be interested in

The possible outcomes for tossing a coin four times are shown below.

valentinak56 [21]

Step-by-step explanation:

The probability of getting exactly four heads is 1/16.

There are 16 different posible outcomes and only 1 is all heads.

That makes the answer 1 out of 16 or 1/16.

<h3><u><em>Please mark this as brainliest, Appreciate it!!</em></u></h3><h3><u><em>Thank you !!! </em></u></h3><h3><u><em>: )</em></u></h3>

6 0

3 years ago

Read 2 more answers

Help me

lakkis [162]

Answer:

1/6x.(-18) is the answer

6 0

2 years ago

Read 2 more answers

Which of the following is not equal to sin⁡(-230°)?

xenn [34]

From trigonometry we know that:

if $sin(\theta)=sin(\alpha)$

then, $\theta=n\pi+(-1)^n\alpha$ (where $n$ is an integer)

This can be rewritten in degrees as:

$\theta=n(180^{\circ})+(-1)^n\alpha$ .............(Equation 1)

Now, in our case, $\alpha=-230^{\circ}$

Therefore, (Equation 1) can be written as:

$\theta=n(180^{\circ})+(-1)^n(-230^{\circ})$ ..........(Equation 2)

Now, to find the correct options all that we have to do is replace n by relevant integers and find the values of $\theta$ that match.

For n=2, (Equation 2) gives us: $\theta=2\times 180^{\circ}+(-1)^2(-230^{\circ})=360^{\circ}-230^{\circ}=130^{\circ}$ .

Thus, $sin(230^{\circ})=sin(130^{\circ})$

Now, we know that: $-sin(-50^{\circ})=sin(50^{\circ})$

Let n=-1, then:

$\theta=(-1)\times 180^{\circ}+(-1)^{-1}(-230^{\circ})=-180^{\circ}+230^{\circ}=50^{\circ}$

Thus, $sin(-230^{\circ})=-sin(-50^{\circ})$

Likewise, $sin(-230^{\circ})=sin(50^{\circ})$

Only the last option $sin(-50^{\circ})$ will never match $sin(-230^{\circ})$ because no integral value of $n$ will ever give $\theta=-50^{\circ}$

Thus the last option is the correct option.

3 0

2 years ago

Read 2 more answers

Evaluate: 955-105 x 4 +118

drek231 [11]

Answer: −420x+1073

Step-by-step explanation:

Let's simplify step-by-step.

955−105x(4)+118=955+−420x+118

Combine Like Terms:

=955+−420x+118=(−420x)+(955+118)=−420x+1073

Answer: =−420x+1073

6 0

2 years ago

Read 2 more answers

Urgent!!!!!!!plzz

Nitella [24]

Answer:

too much reading, can you put more points.

(edit: OML SO SORRY -THOUGHT THIS WAS QUESTIONS)

Step-by-step explanation:

7 0

3 years ago

10. Find the coefficient of x term in the expansion of (2x - 5)(x2 – 3x2 + 4).​

10. Find the coefficient of x term in the expansion of (2x - 5)(x2 – 3x2 + 4).