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3 years ago

What is the sum of the coefficients of the expression 3x^4+5x^2+x?

Mathematics

2 answers:

IrinaK [193]3 years ago

7 0

Answer:

The sum of coefficients = 9

Step-by-step explanation:

The given expression is,

3x⁴ + 5x² + x

There are three terms in the given expression. All the terms contains variable x.

<u>To find the coefficients of each terms </u>

term coefficients

3x⁴ 3

5x² 5

x 1

<u>To find the sum of coefficients </u>

sum = 3 + 5 + 1 = 9

Therefore the sum of coefficients = 9

hram777 [196]3 years ago

5 0

<h2>Hello!</h2>

The answer is: 9

To find the sum of the coefficients of the polynomial we have, we need to evaluate $x=1$

So,

$3(1)^4+5(1)^2+1=9$

The sum of the coefficientes of the expression is 9

Have a nice day!

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4 years ago

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3 years ago

Is number 30 <br> -r=-23?

icang [17]

4(x - 3) - r + 2x = 5(3x - 7) - 9x
4x - 12 - r + 2x = 15x - 35 - 9x
6x - 12 - r = 6x - 35
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23 = r <==

with ur answer : -r = -23....u would multiply both sides by -1 to make r positive....resulting in : r = 23....so u basically got the same thing I did...just didn't quite finish

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4 years ago