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Yakvenalex [24]
3 years ago
5

Can someone please help me factor 6x^2 - 9x+42

Mathematics
2 answers:
nordsb [41]3 years ago
7 0

Answer:

-3(x-2)(2x+7)

Step-by-step explanation:

frutty [35]3 years ago
6 0

Answer:

3(2x^2-3x+14)

Step-by-step explanation:

6x^2-9x+42

All three terms have a common factor of 3

3(2x^2-3x+14)

Now let's focus on 2x^2-3x+14 and bring down the factor 3 later

so a=2

b=-3

c=14

Let's try to find two factors for ac that multiply to be a*c and add up to be b.

ac=28

b=-3

-----

ac=7(4)=14(2)=8(2)

Even if I made these pairs with both negatives nothing would give me -3

So you can only go as far as 3(2x^2-3x+14)

Here is another thing to help you if you have ax^2+bx+c and b^2-4ac<0 then it can't be factored (over reals)

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Answer: The boots were marked $86.

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Hat($12) + Boots($86) = 100

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Answer:

improper fractions are mixed numbers that can be multiplied by bottom to top like 2/4 x 4/5 so is 2 and 4 from 2/4 and 4/5 you can also do bottom to top like 2 x 5=10 and 4 x 4= 16 now you can add 10 + 16=26

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2 years ago
What is the full number sequence of Pi
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A large box contains three small boxes and a pearl. The pearl is not in either of the
frutty [35]

The number of pearls in the large box is 16.

<h3>How many pearls are in the large box?</h3>

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Help with math homework please!
yuradex [85]

The correct answer is:  [C}:  " 3 ⁻ ¹ " .

___________________________

<u>Note</u>:  " 3 =  3 ¹  " .

     →   "  3 ⁻ ¹  =  1 / (3 ¹)  = 1 /3 =  \frac{1}{3} " .

_______________________

Let us consider the remaining answer choices:

_______________________

Choice  [A}:  " ( - 1)³ " .    

<u>Note</u>:  " ( - 1)³ "  =  " { - 1 * - 1 * - 1 } " =  " -1 " .  

                →  " -1 " ≠ " \frac{1}{3} " .

                →  So; Choice  [A} is INCORRECT.

___________________________

Choice  [B]:  " (- 3)¹ " .

<u>Note</u>:  " ( - 3)¹ "  =  " -3 " .

                →  " -3 " ≠ " \frac{1}{3} " .

                →  So;  Choice  [B] is INCORRECT.

___________________________

    →  The correct answer is:  [C]: "  3 ⁻ ¹  . "

__________________________

Hope this was helpful!

Best of luck to you!

__________________________

8 0
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