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ohaa [14]
3 years ago
13

Factor n 3 - n 2 + 3n - 3.

Mathematics
2 answers:
son4ous [18]3 years ago
7 0
N³- n² + 3n - 3 = (n²+3 )(x-1 )
Leokris [45]3 years ago
6 0

Answer: The answer is (n+\sqrt3i)(n-\sqrt3i)(n-1).

Step-by-step explanation: The given polynomial expression is

E=n^3-n^2+3n-3.

We are given to factor the above polynomial expression. Since the given polynomial is cubic, so there will be three factors.

The factorisation is as follows:

E\\=n^3-n^2+3n-3\\=n^2(n-1)+3(n-1)\\=(n^2+3)(n-1)\\=(n^2-3i^2)(n-1)\\=(n+\sqrt3i)(n-\sqrt3i)(n-1).

Thus, the factored polynomial is (n+\sqrt3i)(n-\sqrt3i)(n-1).

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The coordinates of the endpoints of line segment C D are C(3, 8) and D(6, -1). Express the length of line segment C D in simples
8_murik_8 [283]
\bf \textit{distance between 2 points}\\ \quad \\
\begin{array}{lllll}
&x_1&y_1&x_2&y_2\\
%  (a,b)
C&({{ 3}}\quad ,&{{ 8}})\quad 
%  (c,d)
D&({{ 6}}\quad ,&{{ -1}})
\end{array}\qquad 
d = \sqrt{({{ x_2}}-{{ x_1}})^2 + ({{ y_2}}-{{ y_1}})^2}
\\\\\\
CD=\sqrt{(6-3)^2+(-1-8)^2}\implies CD=\sqrt{3^2+(-9)^2}
\\\\\\
CD=\sqrt{9+81}\implies CD=\sqrt{90}\quad 
\begin{cases}
90=2\cdot 3\cdot 3\cdot 5\\
\qquad 2\cdot 3^2\cdot 5\\
\qquad 10\cdot 3^2
\end{cases}
\\\\\\
CD=\sqrt{10\cdot 3^2}\implies CD=3\sqrt{10}
3 0
2 years ago
Use an induction proof to prove this statement:<br> For n≥1, 4^n+5 is divisible by 3.
Tpy6a [65]

Answer:

See below

Step-by-step explanation:

We shall prove that for all n\in\mathbb{N},3|(4^n+5). This tells us that 3 divides 4^n+5 with a remainder of zero.

If we let n=1, then we have 4^{1}+5=9, and evidently, 9|3.

Assume that 4^n+5 is divisible by 3 for n=k, k\in\mathbb{N}. Then, by this assumption, 3|(4^n+5)\Rightarrow4^k+5=3m,\: m\in\mathbb{Z}.

Now, let n=k+1. Then:

4^{k+1}+5=4^k\cdot4+5\\=4^k(3+1)+5\\=3\cdot4^k+4^k+5\\=3\cdot4^k+3m\\=3(4^k+m)

Since 3|(4^k+m), we may conclude, by the axiom of induction, that the property holds for all n\in\mathbb{N}.

3 0
2 years ago
I need help :p......​
IRISSAK [1]

Answer:

I believe the answer is C

Step-by-step explanation:

3 0
3 years ago
Find the slope of the line that passes through the points (0, 6) and (20, 14).
mihalych1998 [28]

Answer:

2/5

Step-by-step explanation:

4 0
2 years ago
What are the solutions of x^2+6x=10
posledela

Answer:

x=-3+√19, x=-3-√19

Step-by-step explanation:

x^2+6x=10

x^2+6x-10=10-10

x^2+6x-10=0

a=1 b=6 c=-10 - use the quadratic formula

x=-3+√19, x=-3-√19

I hope this helps!

4 0
3 years ago
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