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
VLD [36.1K]
3 years ago
5

49x^2 + 42xy + 9y^2 Factor completely.

Mathematics
2 answers:
Oduvanchick [21]3 years ago
8 0
49x^2+42xy+9y^2

To factor a quadratic of the form ax^2+bx+c, you must find two values, j and k, which satisfy two conditions:

jk=ac=441 and j+k=42, so j and k must be 21 and 21.

Now replace bx with jx and kx in the original equation.

49x^2+21xy+21xy+9y^2  now factor 1st and 2nd pair of terms...

7x(7x+3y)+3y(7x+3y)  which is equal to

(7x+3y)(7x+3y)  which is equal to

(7x+3y)^2
mario62 [17]3 years ago
6 0
(7x-3y)^2 hope this helps
You might be interested in
Help extra points please !
blsea [12.9K]

Answer:

C. -1 is less than x

Step-by-step explanation:

-3 < 4x + 1

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

-4 < 4x

-4/4 < 4x/4

-1 < x

6 0
2 years ago
What is one fourth in decimal form
olga_2 [115]
.25 Is the answer If that helps you enough
3 0
4 years ago
Read 2 more answers
Find the distance d.Assume that the ratio of d to 120 ft is the same as the ratio of 50 ft to 40 ft
dalvyx [7]

Answer:

since it says implied it would be D. assumed

Step-by-step explanation:

6 0
3 years ago
.01mg is larger than .001g true or false
zloy xaker [14]

Answer

False

Step-by-step explanation:

3 0
3 years ago
Parallelograms can be used to prove statements about triangles.<br><br><br> True False
maw [93]
The answer to this is true

3 0
3 years ago
Read 2 more answers
Other questions:
  • <img src="https://tex.z-dn.net/?f=v%3D%20%5Cpi%20%2F3%20r%5E2h" id="TexFormula1" title="v= \pi /3 r^2h" alt="v= \pi /3 r^2h" ali
    8·1 answer
  • A farmer planted corn in two different fields. He planted 500 seeds of regular corn in Field A and 500 seeds of experimental cor
    8·1 answer
  • A boarding kennel mixes dry dog ​
    13·1 answer
  • I am a 2 digit number.
    6·1 answer
  • No real numbers are irrational numbers
    11·2 answers
  • Ggggggggggggggg ggggggzggggggggggggggggggg
    14·1 answer
  • Please help me I would really appreciate it
    12·2 answers
  • Need help. Have to finish this today!!!!
    15·1 answer
  • Please please help!!! Will give brainlist<br> This is precal on vectors
    15·1 answer
  • Pls help me this is from KA
    7·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!