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solong [7]
3 years ago
8

Factor 6x^3 + 33^2 - 63x

Mathematics
1 answer:
Paladinen [302]3 years ago
5 0
This factors out to 3x (x + 7) (2x - 3)=0.

First, notice that the greatest common factor of this set is 3x.

Once you factor that out, you have a quadratic 2x^2+11x-21=0.

You can solve this by factoring using the ac method, to find two factors whose product is -42 and whose sum is 11. These factors are 14 and -3. 

You can split the middle term b to write 2x^2+14x-3x-21=0.

Then, you can factor to write 2x(x+7)-3(x+7)=0 \\ (2x-3)(x+7)=0. Finally, don't forget the 3x from earlier!

This factors out to 3x (x + 7) (2x - 3)=0.
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guajiro [1.7K]
The least common multiple (or LCM) of 9 and 12 is 36
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3 years ago
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What is the domain of the function y=in(x+2) x<-2 x>-2 x<2 x> x<-2 x>-2 x<2 x>2
aev [14]

For this case we must find the domain of the following function:

y = ln (x + 2)

By definition, the domain of a function is given by all the values for which the function is defined.

In this case, the argument of the expression must be greater than 0 to be defined.

x + 2> 0\\x> -2

Thus, the domain of the function is given by all the values of x greater than -2.

Answer:

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4 0
3 years ago
Describe the ored of operations in this expression find the number it equals.
svlad2 [7]

Answer:

√71

Step-by-step explanation:

Simplify 42÷6 to 7

√64+7

Simplify 64+7 to 71

=√71


8 0
3 years ago
Which statement is true?
riadik2000 [5.3K]

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D

Step-by-step explanation:

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The volume of a sphere is 36 cubic inches. What is the radius of the sphere?
Serjik [45]

Answer:

2.05 inches

Step-by-step explanation:

V = 4/3 x πr³

36=4πr³/3

36x3= 4πr³

108= 4πr³

108/4 = πr³

27= πr^3

27/π =r³

r=

\sqrt[3]{27 \div \pi}

r= 2.048in

round off to 2.05in

<u>PROOF</u>

V = 4÷3 x πr³

V= 4/3 x π(2.05)³

V=4/3 x π8.6

V=4×π×8.6/3

V=108/3

V=36in³

Therefore: radius= <u>2.05 inches</u>

8 0
2 years ago
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