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
ale4655 [162]
2 years ago
13

X²=14x-45 step by step please

Mathematics
1 answer:
dolphi86 [110]2 years ago
5 0

Answer:

X=9 and X=5

Step-by-step explanation:

So you want to get one side to equal zero so you can factor and find x. I recommend subtracting 14x and adding 45 to both sides so you don't have to deal with a negative quadratic.

X^2 - 14X +45 = 0

Now you can factor. Your looking for two factors that equal 45 and add to -14

All factors of 45:

1 and 45, 3 and 15, 5 and 9, -1 and -45,

-3 and -15, -5 and -9

So out of those combinations -5 and -9 both multiply to 45 and add up to -14 so these are our common factors

(X-5)(X-9)=0

X-5=0 add 5 to both sides X=5

X-9=0 add 9 to both sides X=9

You might be interested in
3 ( x - 2 ) + 5 x = 18
Anna11 [10]

Answer:

3 is correct answer

Step-by-step explanation:

3(x - 2) + 5x = 18 \\  3x - 6 + 5x = 18 \\ 8x - 6 = 18 \\ 8x = 18 + 6 \\ 8x = 24 \\ x =  \frac{24}{8}  \\ x =  3

hope it helped you:)

3 0
3 years ago
Read 2 more answers
What number equals 100 when squared?
vfiekz [6]

Answer: 10

Step-by-step explanation: Remember that squaring a number is multiplying a number by itself. 100 = 10² because 10 x 10 = 100.

8 0
3 years ago
Read 2 more answers
sandy is cutting bows out of ribbon which will be used to rap gifts. If sandy need 9/7 feet of ribbon to make a bow and she has
Katarina [22]
Sandy can make 14 bows
3 0
2 years ago
7. Which pair shows equivalent expressions? A. 3(x+2) = 3x + 6 B. 3x + 2x = x²(x + 2) C. 3x + 2 = 3(x + 2) D. -3(2 + x) = -6x -
Sergio039 [100]
C has equivalent expressions I think
8 0
2 years ago
Help plz..And No links!! I repeat No links!!
kompoz [17]

Answer:

6:09

Step-by-step explanation:

clocks are cool and fun

5 0
3 years ago
Read 2 more answers
Other questions:
  • This is a pattern where the terms are related by addition and subtraction. A fixed number is added or subtracted between each te
    6·1 answer
  • Th<br> Write an explicit formula for An, the nth<br> term of the sequence 15, 23, 31, ....
    15·1 answer
  • Evaluate the following function for f(-3),
    7·1 answer
  • Which best describes the relationship between the number of miles a person runs and the number of calories he/she burns?
    5·1 answer
  • How do you multiply 1/16 x 16
    15·2 answers
  • Please solve!!! <br> In a hurry!
    12·1 answer
  • Terry is building a tool shed with a 90 square foot base and a length that is three more than twice the width. This can be model
    14·1 answer
  • Mary drove from her home to the library. After she left the library, she drove to the park. After that, she drove home. The map
    10·1 answer
  • Kyle bought a DVD that cost $19.23, including tax. She gave the sales clerk a $20 bill. How much change should Kyle receive?
    7·2 answers
  • 7. Calculate the volume of the triangular prism on the right.
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!