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posledela
2 years ago
7

Please help me I need this today

Mathematics
1 answer:
stepan [7]2 years ago
8 0

P = 40

180 - 110 - 30 = 40

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What is the complete factorization of the polynomial below
DerKrebs [107]

Answer:

a. \ (x-2)(x+i)(x-i)

Step-by-step explanation:

First of all let's notice that (x-i)(x-i)=(x-i)^2 = x^2+2xi-1 \in \mathbb{C} while our original polynomial is real. So we can rule out the even options B and D. At this point, if the polynomial has a factor of (x-\alpha) it means tha \alpha is a zero of the polynomial. Let's check both 2 (for option a) and -2 (for option c)

p(2)=2^3-2(2)^2+2-2= 8-8+2-2=0

p(-2)= (-2)^3-2(-2)^2+(-2)-2=-8-8-2-2=-20

At this point 2 is a zero, and our final factoring is a(x-2)(x+i)(x-i)

7 0
2 years ago
A. What is an equation of the line with slope -1/2 and y-intercept 2??
Brrunno [24]

Answer:

y = -(1/2)x + 2

Step-by-step explanation:

6 0
2 years ago
M= 2n - 2 <br> solve for n
jasenka [17]

Answer: M=2n-2

2n-2=0

2n-2+2=0+2

2n=2

Divide both side by 2

n=1

Step-by-step explanation:

5 0
3 years ago
I really need help ! it would mean alot if you did help ❤️ !​
arlik [135]

Answer:

B

Step-by-step explanation:

Hope this helps!!!

7 0
2 years ago
Read 2 more answers
What is the expression and answer
swat32

Answer:

Step-by-step explanation:

<em>L</em> is 2* <em>W</em> so L=2W

perimeter= 2w+2l

plug in whats given to get

perimeter=2w+4w   4w is because L is *2 of W so that makes L=2w

36=6w

36/6=6

6w/6=w

w=6

6*2=12=L

now we have 6*12=72=Area

3 0
3 years ago
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