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
Naddik [55]
1 year ago
13

Evaluate 3x² - 4xy + 2y² - 1 for x = - 3 and y = 5

Mathematics
2 answers:
zhannawk [14.2K]1 year ago
8 0

Answer:

3x^{2} - 4xy + 2y { }^{2} - 1  \\ 3 \times ( - 3) { }^{2}  - 4 \times ( - 3)  \times 5 + 2 \times 5 {}^{2} - 1 \\ (3 \times 9) - ( - 60) + 50 - 1 \\ 27 + 60 + 50 - 1 \\ 165

11111nata11111 [884]1 year ago
3 0

Answer: 136

Substitute -3 for x and 5 for y.

3x^2 - 4xy + 2y^2 - 1

3(-3)^2-4(-3)(5)+2(5)^2-1

3(9)-4(-15)+2(25)-1

27+60+50-1

87+50-1

137-1

136

hope this helped!

You might be interested in
Which transformation will map figure Lonto figure 12 (1 point)
Alexandra [31]

Answer:

Horizontal translation of 6 units

3 0
2 years ago
Just take a look at the picture and say the answer no explaining
alexdok [17]

Answer:

16-25

Step-by-step explanation:

5 0
3 years ago
Read 2 more answers
Which function represents exponential growth
marta [7]
The exponential function with a base greater than 1 is

  14(1.95)^x
4 0
4 years ago
Read 2 more answers
Plzzzzzz help meeee plz I am timed
Marina CMI [18]

Answer:

multiplication property of equality. Hope this help and maybe a brainlist?

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
find three points that belong to the graph and use them to sketch the graph of the equation: y = 2 + x
iris [78.8K]

Answer:

I only figured out two points which is (0,2) (1,3)

Step-by-step explanation:

8 0
3 years ago
Other questions:
  • What is 10 percent off 1.80??????????
    7·1 answer
  • What's the answer? please
    15·1 answer
  • What is n? Stick around for more points
    8·1 answer
  • The equation of circle having a diameter with endpoints -3,1 and 5,7 is
    11·1 answer
  • Suppose the average price for new cars in 2012 has a mean of $30,100 and a standard deviation of $5,600. Based on this informati
    5·1 answer
  • Recall the equation for a circle with center ( h , k ) and radius r . At what point in the first quadrant does the line with equ
    8·1 answer
  • Amir has $200 budget to spend on a graduation party for his son he already has purchased $122 worth of drinks and party supplies
    8·1 answer
  • PLEASE HELP ME THIS IS DUE ASAP!!! I will mark brainliest if right!!! Explain!
    10·1 answer
  • Mother shared 60 sweets among her 2 daughters in the ratio 2:3. If Janice gets 20, how many do Kayla gets?​
    5·1 answer
  • 18x=36 with a full explanation and I will give you brainlyest
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!