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Alexxx [7]
3 years ago
8

(4x + 2x + 2x2- 8) + (2x2 + x2+ 9) Subtract or add the polynomials.

Mathematics
1 answer:
VARVARA [1.3K]3 years ago
4 0

Answer:

(4x+2x+4-8)+(4+2x+9)

(6x-4)+(2x+9+4)

(6x-4)+(2x+13)

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Solve the equation x to the second power - 13x to the third power + 47x -35=0 given that 1 is a zero of f(x) = x to the third po
zloy xaker [14]

Answer:

The solution sets are 1, 5 and 7

Step-by-step explanation:

Given the polynomial function,

f(x) = x³-13x²+47x-35

If 1 is a zero function of f(x), according to factor theorem, the linear equation x-1 is a factor of the polynomial.

To get the other solution set, we will have to divide the polynomial function by x-1 and factorize the quotient function.

Factorising the resulting quotient function.

Q(x) = x²-12x+35 = 0

= x²-5x-7x+35 = 0

= x(x-5)-7(x-5) = 0

(x-5)(x-7) = 0

x-5 = 0 and x-7 = 0

x = 5 and 7

6 0
3 years ago
F(x)=-3x • G(x) = x +7
kirill [66]

Answer:

-3x^2 - 21x

Step-by-step explanation:

This question is representing multiplying two functions :

We are finding f(x) * g(x)

We know that f(x) is -3x and g(x) is x + 7, therefore :

(-3x)(x + 7)

Follow FOIL :

First :

(-3x)(x)

-3x^2

Outer :

(-3x)(7)

-21x

Therefore the answer is :

-3x^2 - 21x

7 0
3 years ago
What is the rate of change seen in the graph below?
Grace [21]

Answer:

zero

Step-by-step explanation:

This flat horizontal line is Y=1 has a slope (rate of change) of zero.

7 0
3 years ago
Jen Butler has been pricing​ Speed-Pass train fares for a group trip to New York. Three adults and four children must pay $ 79.
xxMikexx [17]

<u>Answer:</u>

Price of the​ adult's ticket = $13

Price of a​ child's ticket = $ 10

<u>Step-by-step explanation:</u>

Given:

Cost of train fares for Three adults and four children = $79

Cost of train fares Two adults and three children  = $ 56

To Find:

Price of the​ adult's ticket and the price of a​ child's ticket =?

Solution:

Let the cost of one adult's ticket be x  and

Let the cost of one child's ticket be y

Then

Three adults and four children must pay $ 79 be

3x + 4y = 79-----------------------------------------------(1)

Two adults and three children must pay $56

2x + 3y = 56----------------------------------------------(2)

multiply  eq(1) by 2, we get

6x + 8y = 158----------------------(3)

multiply  eq(2) by 3, we get

6x + 9y = 168----------------------(4)

Subracting (3) from (4)

 6x + 9y = 168

 6x + 8y = 158

(-)      (-)       (-)

------------------------------

0x +  y = 10

------------------------------

y=10

Now substitute the value of y in eq (1) to get the value of x

3x + 4(10)= 79

3x +  40 = 79

3x = 79 - 40

3x = 39

x = \frac{39}{3}

x= 13

3 0
4 years ago
Please solve!!!<br><br> in a hurry!!! <br> (show work/explain answer)
Gnoma [55]

Answer:y=4x+2

Step-by-step explanation:

-4x+y=2

−4x+y+4x=2+4x

y=4x+2

y=4x+2

4 0
3 years ago
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