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Mrac [35]
3 years ago
13

-9x(x-1)+(-x)(-3x+4)

Mathematics
1 answer:
Greeley [361]3 years ago
8 0
- 9 x * ( x - 1 ) + ( - x ) * ( - 3 x + 4 ) =
= - 9 x² + 9 x - x * ( - 3 x + 4 ) =
= - 9 x² + 9 x + 3 x² - 4 x =
= - 9 x² + 3 x² + 9 x - 4 x =
= - 6 x²  + 5 x  

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3x3 + 9x2 + x + 3 factor completely
EleoNora [17]
<span>
</span>30 + x  thats yhur answer<span>

or

(3x2 + 1) • (x + 3) </span>

Reformatting the input :

Changes made to your input should not affect the solution:

 (1): "x2"   was replaced by   "x^2".  1 more similar replacement(s).

Step by step solution :<span>Equation at the end of step  1  :</span><span><span> (((3 • (x3)) + 32x2) + x) + 3 </span><span> Step  2  :</span></span><span>Equation at the end of step  2  :</span><span> ((3x3 + 32x2) + x) + 3 </span><span>Step  3  :</span>Checking for a perfect cube :

<span> 3.1 </span>  <span> 3x3+9x2+x+3</span>  is not a perfect cube 

Trying to factor by pulling out :

<span> 3.2 </span>     Factoring: <span> 3x3+9x2+x+3</span> 

Thoughtfully split the expression at hand into groups, each group having two terms :

Group 1:  x+3 
Group 2: <span> 3x3+9x2</span> 

Pull out from each group separately :

Group 1:   (x+3) • (1)
Group 2: <span>  (x+3) • (3x2)</span>
               -------------------
Add up the two groups :
              <span> (x+3)  • </span><span> (3x2+1)</span> 
Which is the desired factorization

Polynomial Roots Calculator :

<span> 3.3 </span>   Find roots (zeroes) of :      <span> F(x) = 3x2+1</span>
Polynomial Roots Calculator is a set of methods aimed at finding values of  x  for which  F(x)=0  

Rational Roots Test is one of the above mentioned tools. It would only find Rational Roots that is numbers  x  which can be expressed as the quotient of two integers

The Rational Root Theorem states that if a polynomial zeroes for a rational number  P/Q  then  P  is a factor of the Trailing Constant and  Q  is a factor of the Leading Coefficient

In this case, the Leading Coefficient is  3  and the Trailing Constant is <span> 1. 

 </span>The factor(s) are: 

of the Leading Coefficient : <span> 1,3 
 </span>of the Trailing Constant : <span> 1 

 </span>Let us test ....

<span><span>  P  Q  P/Q  F(P/Q)   Divisor</span><span>     -1     1      -1.00      4.00   </span><span>     -1     3      -0.33      1.33   </span><span>     1     1      1.00      4.00   </span><span>     1     3      0.33      1.33   </span></span>


Polynomial Roots Calculator found no rational roots

Final result :<span> (3x2 + 1) • (x + 3) thats yhur answer</span>

<span>
Processing ends successfully</span>

<span>
im not sure wich one yhu need

</span>
6 0
3 years ago
John has a cylindrical propane tank that measures 8" in diameter and 8" tall If John
kirza4 [7]

Answer:

2 times as large

Step-by-step explanation:

For the original cylinder, we can say that the volume of a cylinder is equal to V= πr²h. For this cylinder, we can say that  V = π * radius² * height. The radius is equal to 1/2 of the diameter, so the original radius is 8/2 = 4. Therefore, the volume of the original cylinder is V = π * radius² * height = π * 4² * 8 = π * 16 * 8 = π * 128

For the new cylinder, "twice as wide" means that the diameter is twice as big as the original one. Half the height means that the height is halved. The new diameter is therefore 8 * 2 = 16 (meaning that the new radius is 16/2=8) while the new height is 8/2 = 4. The new volume is thus

V = π * radius² * height = π * 8² * 4 = π * 64 * 4 = π * 256

To see how much larger the new tank volume is, we can divide (new tank volume) by (old tank volume), resulting in

π * 256 / (π *128) = 2

8 0
3 years ago
I need help with this question
Anna11 [10]
J.WYIBVNJVJNDVBBNUVHUGHTNBJTHNIL
3 0
3 years ago
What expression is equivalent to -15x + 39? *
Nookie1986 [14]

Answer:

-15x + 39 = -3(5x - 13)

Step-by-step explanation:

a. -3(5x - 13) = -15x + 39

b. -3(5x + 13) = -15x - 39

c. 3(5x - 13) = 15x - 39

d. 3(5x + 13) = 15x + 39

7 0
2 years ago
Given f(x) = 5x + 2 and g(x) = 5x - x5x. What is the value of (f g)(1)?
AlladinOne [14]

Answer:A

Step-by-step explanation:

8 0
2 years ago
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