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Zina [86]
3 years ago
14

Simplify the expression (x^2 + 2x + 3)(x^2 – 2x – 2)

Mathematics
2 answers:
boyakko [2]3 years ago
8 0

Answer:

x^4-3x^2-10x-6

Step-by-step explanation:

To simplify this expression we must apply the distributive property

Distributive Property

(a+b)(c+d)= ac+ad+bc+bd

Going over some rules

Law of the signs

(-)(-)=+\\(-)(+)=-\\(+)(+)=+

Powers

Ax^b.Cx^d=ACx^{(b+d)}

Simplifying

(x^2+2x+3)(x^2-2x-2)=x^4-2x^3-2x^2+2x^3-4x^2-4x+3x^2-6x-6

We add similar terms (those that have the same power)

x^4-2x^3-2x^2+2x^3-4x^2-4x+3x^2-6x-6\\x^4-3x^2-10x-6

Leto [7]3 years ago
5 0
Simplified: x^4+3x^2-10x-6 
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Multiplying positive and negative fractions 2/5 times 2/3
Svet_ta [14]

Answer:

\frac{4}{15}

Step-by-step explanation:

I used an online Fraction calculator to check my answer and I got 4/15 both times so you can trust this answer my friend.

Hope this helped you out.

5 0
3 years ago
Use the given conditions to write and equation for the line in the indicates form:
stellarik [79]
We know that
the equation of the line in <span>slope-intercept form--------------> y=mx+b

Part A)
</span>Passing through (2,5) and perpendicular to the line whose equation is -3x+y-6=0

<span>Step 1
find the slope m
</span><span>remember that if two lines are perpendicular mi*m2=-1
</span>-3x+y-6=0---------> y=3x+6-------------> m1=3
then
m2=-1/3   

Step 2
find the value of b
point (2,5)  m=-1/3
y=mx+b----------> 5=(-1/3)*2+b--------> b=5+(2/3)-----> b=17/3

Step 3
find the equation of the line in slope-intercept form
y=(-1/3)x+17/3

using a graph tool
see the attached figure

the answer part A) is y=(-1/3)x+17/3

Part B)
Passing through (2,5) and perpendicular to the line whose equation is -3x-6=7x; slope intercept form.

Step 1
-3x-6=7x---------> 10x=-6 -----> x=-6/10-----> x=-3/5 (parallel to the axis y)
equation of the line is a constant so its perpendicular will be another constant defined by the coordinate y of the point through which it passes parallel to the axis x

point (2,5)  ----------> the coordinate y=5
therefore
the perpendicular line is y=5 (parallel to the axis x) 

using a graph tool
see the attached figure

the answer part B) is y=5

4 0
3 years ago
12×d=84. i need help with this problem please help me
kirza4 [7]
D=7 because 12 multiplied by 7 equals 84
4 0
3 years ago
Read 2 more answers
Solve B+B=2 B+C=5 B+C*2=
Illusion [34]

B+B=2

assuming that B is 1 I will say that 4 is C.

4+1*2= 10 is your answer.

7 0
3 years ago
Read 2 more answers
What are the measures of the marked angles? a. 19 ° b. 27 ° c. 38 ° d. 90 °​
AVprozaik [17]

Answer:

what are the measures of the marked angles?19°

6 0
3 years ago
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