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
Inessa05 [86]
2 years ago
10

Simplify the polynomial by combining like terms. Make sure your anwser is in standard form: 4x + 7 - 8x (2) + 2x + 5x (2) - 11

Mathematics
2 answers:
noname [10]2 years ago
8 0

Answer:

\tt   \huge \boxed{ \boxed{\color{silver}  { - 3x}^{2}  + 6x - 4}}

Step-by-step explanation:

<h3>to understand this</h3><h3>you need to know about:</h3>
  • algebra
  • algebraic addition subtraction
  • PEMDAS
<h3>tips and formulas:</h3>
  • quadratic expression standard form:ax²+bx+c
  • order of PEMDAS
  1. parentheses
  2. exponent
  3. multiplication or
  4. division
  5. addition
  6. subtraction
  • left to right
<h3>given:</h3>
  • 4x+7-8x²+2x+5x²-11
<h3>to do</h3>
  • simplification
<h3>let's do:</h3>

step - 1  : define

\sf 4x + 7 -  {8x}^{2}  + 2x +  {5x}^{2}  - 11

step - 2 : simplify

  1. \tt \: rewrite  : \\ \sf {8x}^{2}  +  {5x}^{2}   + 4x + 2x + 7 - 11
  2. \tt \:combine \: like \: terms: \\ \sf { - 3x}^{2}      + 6x + 7 - 11
  3. \tt \: substrak :  \\ \sf  { - 3x}^{2}  + 6x - 4

therefore

we can see the expression is in standard form since a,b and c is -3,6 and -4

also let's justify it

substitute the value of a,b and c respectively

(-3)x²+(6)x+(-4)

-3x²+6x-4 (proven)

yarga [219]2 years ago
5 0

Answer:

  • -3x² + 6x - 4

Step-by-step explanation:

<u>Simplify</u>:

  • 4x + 7 - 8x² + 2x + 5x² - 11 =
  • x²(-8 + 5) + x(4 + 2) + (7 - 11) =
  • -3x² + 6x - 4
You might be interested in
Can someone help me with this, im not really good at math and i dont understand this :(​
cluponka [151]

Answer:

y = 2x + 4

Step-by-step explanation:

First find 2 points on the line to determine slope.

(0, 4) and (2, 8)

Slope = \frac{8-4}{2-0}=2

y = 2x + b

b = y - intercept

b = 4

y = 2x + 4

4 0
3 years ago
Read 2 more answers
What is the q1 of 531 469 573 206 374 421 505 489 702
Galina-37 [17]

Answer: Order the data to find the minimum, maximum, and quartiles.

206, 374, 421, 469, 489, 505, 531, 573, 702.

Step-by-step explanation: I hoped this helped in some way or form.

6 0
2 years ago
Solve the system of equations using multiplication.
salantis [7]

Answer:

B. (-3, -2)

Step-by-step explanation:

Multiply the first equation by -1/3 and add the result to the second equation.

-1/3(3x -3y) +(5x -y) = -1/3(-3) +-13

4x = -12 . . . . simplify

x = -3 . . . . . . divide by 4

Substituting this into -1/3 times the first equation, we get ...

-(-3) +y = 1

y = -2 . . . . . . . subtract 3

The solution is (x, y) = (-3, -2).

6 0
3 years ago
Help meeee the first to answer this question will get a Brainliest!!
Mrac [35]
It’s $15.69 for each of the 3 pizzas because 15.69+15.69+15.69=47.07 and then add the delivery fee and it’s 49.57
6 0
3 years ago
Read 2 more answers
Can someone please solve this for me
Savatey [412]

Answer:

m<JKD = 22 degrees

Step-by-step explanation:

21x + 5 + 4x + 2 = 132

25x + 7 = 132

25x = 125

x = 5

m<JKD = 4x + 2

4(5) + 2

20 + 2

22

5 0
2 years ago
Read 2 more answers
Other questions:
  • max invests $6000 in a savings account for 3 years. the account pays compound interest at a rate of 1.5% per year for the first
    9·2 answers
  • A box (with no top) is to be constructed from a piece of cardboard of sides a and b by cutting out squares of length h from the
    11·1 answer
  • (1) Which fraction is a multiple of 1/6
    8·1 answer
  • _% of 50 shirts is 35 shirts
    13·2 answers
  • Can somebody please help me with these 2 problems?
    11·1 answer
  • Find all the solutions for the equation:
    7·1 answer
  • Which expression is equivalent to 4 sqrt x^10
    14·2 answers
  • Answer the questions
    8·2 answers
  • The height, h in feet, of a rocket is given by h=-16t^2+64t+190, where t is time in seconds. Find the maximum height of the rock
    13·1 answer
  • Help me as quickly as possible!! thank you
    15·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!