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
LuckyWell [14K]
4 years ago
10

Factorising quadratics X squared + 5x -6 X squared - 2x15 X squared -7x +12

Mathematics
1 answer:
34kurt4 years ago
5 0

Answer:

  • (x -1)(x +6)
  • (x -5)(x +3)
  • (x -4)(x -3)

Step-by-step explanation:

In each case, you're looking for divisors of the constant that have a sum equal to the x-coefficient. Those divisors are the constants in the binomial factors.

1) -6 = -1·6 = -2·3 . . . . . (-1)+(6) = 5, so these are the constants of interest.

  x^2 +5x -6 = (x -1)(x +6)

__

2) -15 = -1·15 = -3·5 = -5·3 . . . . . (-5)+(3) = -2, so these are the constants of interest

  x^2 -2x -15 = (x -5)(x +3)

__

3) 12 = -1·-12 = -2·-6 = -3·-4 . . . . . (-3) +(-4) = -7, so these are the constants of interest

  x^2 -7x +12 = (x -3)(x -4)

You might be interested in
Find the LCM of: 14a^4n^2 and 35a^3mn^2 https://brainly.com/question/25332219
Allisa [31]

Answer:

I am not able to login to the account can u please type the question

8 0
3 years ago
How to do this?
Mandarinka [93]
This equation uses two properties of logarithms:

\ln(g^x) = x \ln(g)

\ln(a) + \ln(b) = \ln(ab)

So you could take the ln from left and right hand side in the equation, and get:

(2-x)ln 3 = x ln 5

then

2 ln 3 - x ln 3 - x ln 5 = 0 =>

x(ln 3 + ln 5) = 2 ln 3

so x = 2 ln 3 / (ln3 + ln5)

Now using the 1st property you can say 2 ln 3 is ln 3² = ln9
and using the 2nd property you can say ln3 + ln5 = ln15

so x= ln9 / ln15


7 0
3 years ago
Calculate the area of a circle with a dime tier of 16cm pi=3
Mashcka [7]

The area of every circle is        (pi) (radius²) .

Radius = 1/2 of the diameter, so the area of your circle is

                   (pi) x (8 cm)²  =  201 cm² .    (rounded)

(pi) is not 3 .   There's nothing wrong with approximating (pi),
but 3 is more than 4.5% wrong, and that's too much.  There's
no reason why  3.14  should be too hard to handle.

7 0
3 years ago
Read 2 more answers
Help help me please!!!!!!!​
Makovka662 [10]

Answer:

okay so the first question says divide :40203 by 13

= after dividing the quotient comes as 3092

Step-by-step explanation:

then to verify the answer using division algorithm

the formula is as dividend = (q x d) + remainder

so the verification= 13 x 3092 + 7 = 4023

the second question says to find the difference between the pv of two 4's in 948475

the answer is 40000 - 400 = 39600ans.

the third question's answer will be:

amount mohan deposited in his savings Bank account= ₹35000

amount he withdrawed = ₹6245

therefore total amount of money left in his account =

₹28755ans.

Hope it helps!!!!!!!!!!

pls mark as brainliest!!!!!!

6 0
3 years ago
19x+5+16x=180<br> I need help with this I don’t understand
EleoNora [17]

Hello!

--------------------------------------------------------------------------------------------------------------

19x+5+16x=180

First, add the x's together:

35x+5=180

Now, subtract 5 from both sides:

35x=180-5

35x=175

Divide both sides by 35 to isolate x:

x=5

Hope you find my answer helpful! Please give the crown if you do! (:

~SparklingFlower

--------------------------------------------------------------------------------------------------------------

7 0
2 years ago
Other questions:
  • Help! I'll give brainliest to the first correct answer! ​
    15·1 answer
  • The sum of three consecutive odd numbers is 147. what is the smallest of the three numbers?
    15·1 answer
  • 7. There are 4 times as many boys
    8·1 answer
  • D = 8 cm<br> h = 18 cm<br> What is the surface area of the cylinder
    8·1 answer
  • |2x-5|=9 what is the positive and negative answer
    11·1 answer
  • Select the system of linear inequalities whose solution is graphed.
    15·1 answer
  • A 12-ft ladder leaning against a house makes a 64 degree angle with the ground. Will the ladder reach a window sill that is 10.5
    9·1 answer
  • Can someone pls help solve this
    10·1 answer
  • Carissa earns $450 per week for a 40 hour work week plus $16.83 per hour for each hour of overtime after 40 hours. Write an equa
    11·1 answer
  • My dads generation had wonder woman while our genration has to wonder if its a women.
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!