1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
melamori03 [73]
3 years ago
5

3a² + 11a – 42this is factoring in algebra 2 (high school) ​

Mathematics
1 answer:
N76 [4]3 years ago
3 0

To factor,

<h2>[[[</h2>

1) First multiply coefficient of a² and constant no,

That is,

3×(-42)=-126

Since the<u> resultant no is negative</u>, you should find two such factors of 126 <u>which</u> <u>will give us the coefficient of a (=11)</u> on subracting those factors.

2) Find the factor

126=2×3×3×7

=18×7

18 and 17 are factors of 126

Also,18-7 =11.

So they are required factors for factoring,

<h2>]]]</h2>

Once you have understood above steps you can solve on your own. All you need to do is split 11 into factors ,take common terms and you will get answer.

<u>Answer:</u>

3a²+11a-42

=3a²+(18-7)a -42

=3a²+18a-7a-42

=3a(a+6) -7(a+6)

=(a+6)(3a-7)

You might be interested in
What is the solution to the following 21+x=13​
Hitman42 [59]

Answer:x=-8

Step-by-step explanation:subtract 21 from both sides then simplify 31-21 to -8

7 0
3 years ago
How many tens do you need to get too 805
Goryan [66]
The answer is 80.5 ... 805 / 5 
7 0
3 years ago
Read 2 more answers
an article after allowing a discount of 20% on its marked price was sold at a gain of 20% had it been sold after allowing 25% di
Effectus [21]

Answer:

Rs 120

Step-by-step explanation:

Let MP = m

Discount = 25% of MP = m/4

SP = MP - Discount

= m - m/4 = 3m/4

If profit is 20%, CP = 3m/4 x 100/120 = 5m/8

=> Profit = 3m/4 - 5m/8 = m/8

Given Profit - Discount = Rs 15

=> |m/8 - m/4| = 15

m/8 = 15

m = Rs 120

8 0
3 years ago
If point W is -4,-2 and point V is -2,-2 what is the length of VW
Helen [10]

Answer:

2 units

Step-by-step explanation:

The length of VW is just the distance between the two coordinates. You could use the distance formula, or an easier and faster way would be to recognize that since both points have the same y-coordinate, the distance between them will just be the distance of the x-coordinates. The absolute value of -4 and -2 is 2, so the length of VW is 2 units.

Hope this helped! ;)

5 0
3 years ago
If a hat costs 15$ and the sales tax is 10% how much money do you need to buy the hat
GREYUIT [131]

Answer:

the answer would be 16.50

6 0
3 years ago
Other questions:
  • At the beginning of an experiment, a scientist has 132 grams of radioactive goo. After 135 minutes, her sample has decayed to 8.
    6·1 answer
  • . Cecil is planting seeds in five large pots in his front yard. He has a total of 50 seeds. He put 14 seeds in the first pot and
    14·1 answer
  • What is the volume of a cylinder with a radius of 479.087 and a height of 29.3
    6·1 answer
  • * If you are given the measurements of two sides of a triangle,
    14·2 answers
  • F(x) : |x|
    5·1 answer
  • -8x+3(x-5)=25 solve for x<br><br> literally i will give u points or whatever just get me an answer
    12·2 answers
  • Pls answer i really needed this answer
    6·1 answer
  • Meredith is 3 times as old as Adam. Six years from now, she will be twice as old as Adam will be then. How old is Adam now
    10·1 answer
  • Which describes the dilation used to create triangle<br> XYZ?<br><br> PLEASE HELP
    15·1 answer
  • Given that x=6 and y= -4<br> 3x + x over y - y^2
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!