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Irina18 [472]
3 years ago
12

How do i get the factor of 3p2-2p-5

Mathematics
2 answers:
tensa zangetsu [6.8K]3 years ago
5 0
3p² - 2p - 5 = 0

3p² + 3p - 5p - 5 = 0

3p(p + 1) -5(p + 1) = 0

(3p - 5)(p + 1) = 0

p = 5/3 or -1

Hope this helps!
Reika [66]3 years ago
5 0

The first term is, <span> <span>3p2</span> </span> its coefficient is <span> 3 </span>.
The middle term is, <span> -2p </span> its coefficient is <span> -2 </span>.
The last term, "the constant", is <span> -5 </span>

Step-1 : Multiply the coefficient of the first term by the constant <span> <span> 3</span> • -5 = -15</span> 

Step-2 : Find two factors of  -15  whose sum equals the coefficient of the middle term, which is  <span> -2 </span>.

<span><span>     -15   +   1   =   -14</span><span>     -5   +   3   =   -2   That's it</span></span>


Step-3 : Rewrite the polynomial splitting the middle term using the two factors found in step 2 above,  -5  and  3 
                     <span>3p2 - 5p</span> + 3p - 5

Step-4 : Add up the first 2 terms, pulling out like factors :
                    p • (3p-5)
              Add up the last 2 terms, pulling out common factors :
                     1 • (3p-5)
Step-5 : Add up the four terms of step 4 :
                    (p+1)  •  (3p-5)
             Which is the desired factorization

Final result : (3p - 5) • (p + 1) <span>
</span>
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Step-by-step explanation:

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7 0
3 years ago
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If an object is launched at an angle of 28° with an initial velocity of 133 ft./s from a height of 6 feet how many seconds will
Tema [17]

Answer:

Hence after  3.98 sec  i.e  4 sec Object will hit the ground  .

Step-by-step explanation:

Given:

Height= 6 feet

Angle =28 degrees.

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To Find:

Time in seconds after which it will hit the ground?

Solution:

<em>This problem is related to projectile motion for objec</em>t

First calculate the Range for object  and it is given by ,

R=v^2Sin(2Ф)/g

Here R= range  g= acceleration due to gravity =9.8 m/sec^2

1m =3.2 feet

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So g=31.36 ft/sec^2. and 2Ф=2(28)=56

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Now using Formula for time and range as

R=VxT

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Vx=117.43  ft/sec

So above equation becomes as ,

467.62=117.43*T

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4 0
3 years ago
Help me with this,i really forgot how to do these type of questions
Montano1993 [528]
Work=speed times time (my equation to help me figure it out)

ok, 10 men take 84 days to complete a job
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15 times 1/840 times xdays=1 job complete
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Answer:

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Step-by-step explanation:

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GR5_Math_U7_FS
Nutka1998 [239]

Answer:

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Step-by-step explanation:

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