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
victus00 [196]
3 years ago
15

Simplify the following expression: (5x2 + 3x + 4) − (2x2 + 7x − 1). If the final answer is written in the form Ax2 + Bx + C, wha

t is the value of B (the coefficient in front of x)?
Write only the numeric value (no variables should be typed in your response).
Mathematics
2 answers:
Andrews [41]3 years ago
8 0

Answer:

 

3x + 2x2 + 4 = 5

3x + 2x2 + 4 – 5 = 5 – 5

First be sure that the right side of the equation is 0. In this case, all you need to do is subtract 5 from both sides.

 

3x + 2x2 – 1 = 0

2x2 + 3x – 1 = 0

Simplify, and write the terms with the exponent on the variable in descending order.

 

2x2

+

3x

–

1

=

0

↓

 

↓

 

↓

 

 

ax2

 

bx

 

c

 

 

 

a = 2, b = 3, c = −1

 

Now that the equation is in standard form, you can read the values of a, b, and c from the coefficients and constant. Note that since the constant 1 is subtracted, c must be negative.

Answer

2x2 + 3x – 1 = 0; a = 2, b = 3, c = −1

Step-by-step explanation:

Mila [183]3 years ago
6 0

Answer:

;...

Step-by-step explanation:

You might be interested in
Write the letter of every special quadrilateral that has the given property. (I will give brainliest)
kifflom [539]

look it up hare

sorry if it's not what your looking for

7 0
3 years ago
Use the coordinate plane to help you identify the length of each leg then use the Pythagorean Theorem to find the length of CD​
mihalych1998 [28]

Answer:

the answe is 10.30

Step-by-step explanation:

im also from k12 lol

5 0
3 years ago
on a mathematics test, Mary scored 27 points out of a possible 60 points. what was her percentage mark?
Oksana_A [137]

Answer:

45%

Step-by-step explanation:

\frac{27}{60}  \times 100 = 45\%

4 0
3 years ago
Read 2 more answers
CAN YOU HELP ME ND WHO LOVE BILLIE ELISHIE
Alla [95]
I don’t like billies music but i like her as a person
8 0
3 years ago
Read 2 more answers
What does X equal how do I get it?
kvv77 [185]
X=20 because it's an equilateral triangle all the angles are 60 deg
3 0
3 years ago
Read 2 more answers
Other questions:
  • Find an equivalent ratio for the ratio 90 : 18
    7·1 answer
  • Help is it positive 22 and negetive 27 or or 6 and postive 1
    8·1 answer
  • What is nine and forty-two hundredths
    7·1 answer
  • Manuel is 6 years older than melissa. In 6 years the sum of their ages will be 52. How old is manuel now?
    8·2 answers
  • The pet store is giving away samples of dog treats. Each dog that visits the store will get 2 free treats. Yesterday the store g
    9·2 answers
  • Which of the following expressions are equivalent
    5·2 answers
  • There are 16 boys and 18 girls in a grade 6 math class . write the ratio of girls to boys in words as simply as possible
    11·1 answer
  • Can any body answer these ???
    10·1 answer
  • A kicker made 10 of his last 12 field goals. Predict about how many of his next 42 field goals the kicker will not make. Show yo
    11·1 answer
  • I need help on this question !!!
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!