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Agata [3.3K]
2 years ago
10

Can someone help me please

Mathematics
1 answer:
Arte-miy333 [17]2 years ago
6 0

Answer:

The answer is 4

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If two zeroes of a polynomial x3+5x2+7x+3 are -1 and-3 then find the third Zero
belka [17]

Answer:

Third zero is -1.

Step-by-step explanation:

consider the given polynomial is  

P(x)=x^3+5x^2+7x+3

It is given that -1 and -3 are two zeroes, therefore (x+1) and (x+3) are two factors of given polynomial.

The given polynomial can be rewritten as

P(x)=x^3+x^2+4x^2+4x+3x+3

P(x)=x^2(x+1)+4x(x+1)+3(x+1)

P(x)=(x+1)(x^2+4x+3)

Now, splitting the middle term, we get

P(x)=(x+1)(x^2+3x+x+3)

P(x)=(x+1)(x(x+3)+1(x+3))

P(x)=(x+1)(x+1)(x+3)

P(x)=(x+1)^2(x+3)

Here, power of (x+1) is 2. It means the multiplicity of zero -1 is 2.

So, three zeroes are -1, -1 and -3.

Therefore the third zero is -1.

7 0
3 years ago
2/11 , 8/15, 7/13, 5/12<br> Which fraction does not belong with the other three?
ololo11 [35]
It's 2/11 because all the others round to 1/2.
3 0
2 years ago
From $18 to $45 = what is the answe I really need help bruh
Bess [88]

Yea I am stupid

Answer:

Step-by-step explanation:

8 0
3 years ago
2<br> What is the value of a in the equation 5a - 10b = 45, when b = 3?<br> 3<br> 15<br> 21<br> 39
dolphi86 [110]

Answer:

Q1 is 15

Q2 is 39

Q3 is 51

Q4 is 87

Step-by-step explanation:

5 0
2 years ago
Complete the statements to find the measurements of angle a and angle b ​
a_sh-v [17]
The measurement of angle a plus 120 must equal to 180 ( as angles on a straight line must equal to 180)
So measurement of angle a is 60 degrees
Measurement of angle b plus 60 plus 60 must equal to 180
So measurement of angle b is 60
7 0
2 years ago
Read 2 more answers
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