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
STatiana [176]
3 years ago
15

Explain step by step how to use the horizontal method the multiple the two polynomials

Mathematics
1 answer:
MatroZZZ [7]3 years ago
4 0

Answer:

Step-by-step explanation:

Multiply each term of the first polynomial with   the second polynomial. Then combine the like terms.

(3a<em>² + 5a - 2)* (5a² -3a + 4)</em>

<em> = 3a² *(5a² -3a + 4)  + 5a*(5a² -3a + 4)  - 2*(5a² -3a + 4)</em>

<em>=3a²*5a² - 3a*3a² + 4*3a² +  5a*5a² - 3a*5a  + 4*5a + 5a²*(-2) - 3a*(-2) + 4*(-2)</em>

<em>=15a⁴ - 9a³  + 12a² + 25a³ - 15a² + 20a - 10a² + 6a - 8</em>

<em>= 15a⁴ </em><u><em>- 9a³ + 25a³</em></u><em>   +</em><u><em> 12a² - 15a² - 10a²</em></u><em>   +</em><u><em> 20a +6a </em></u><em>- 8</em>

<em>= 15a⁴ + 16a³  - 13a² +26a  - 8</em>

You might be interested in
A.(-1,6)<br> B.(-6,5)<br> C.(-8,1)<br> D.(-10,1)<br><br> HELP ASAP‼️‼️
Evgen [1.6K]

Answer:

the answer is b

Step-by-step explanation:

I did this last year and got them right

3 0
3 years ago
What is the unit rate of y = 2/3x ? ( must satisfy the definition of unit rate )
Nat2105 [25]
The unit rate is 2/3 because in the line y=2/3x, 2/3 is the slope (y=mx+b). The slope of the line is pretty much the definition of a unit rate because the unit rate is a constant addition or subtraction over and over. In addition, it is a straight line(y=mx+b) and the values are going up at a constant rate of 2/3.
7 0
3 years ago
Please help me with this
timama [110]

Answer:

choice 1

Step-by-step explanation:

angle 1 = angle 7 (exterior alternate angle)

angle 3=angle 5 (interior alternate angle)

3 0
2 years ago
Please help. You dont have to show work.
g100num [7]
%error=100(estimate-actual)/actual

%e=100(50-40)/40=25%

can't see the whole question but...

40(60/100)=24

so 24/40=3/5 carry a phone.

24 students carry a phone.
8 0
3 years ago
Given the system of equations, what is the solution?
fredd [130]

The solution for the given equations  x + 3y = 5 and x - 3y = -1 are x=2 and y=1.

Step-by-step explanation:

The given is,

           x+3y=5......................................(1)

           x-3y=-1....................................(2)

Step:1

         By elimination method,

        Subtracting Equations (1) and (2),

                     x+3y=5

                     x-3y=-1

             ( - )

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

                                       6y = 6

                                         y = 1

Step:2

        Substitute the value of y in equation (1),

                             x+3y=5

                       x + ( 3 × 1 ) = 5

                                      x = 5-3

                                      x = 2

Step:3

        Check for Solution,

        Substitute the values of x and y in Eqn (1),

                                  x+3y=5

                           2 + ( 3 × 1 ) = 5

                                         5 = 5

Result:

       The solution for the given equations  x + 3y = 5 and x - 3y = -1 are x=2 and y=1, by elimination method.

7 0
3 years ago
Other questions:
  • Multiply: (3x + 7)(5x2 − 3x + 6) A) 15x3 + 26x2 − 39x + 42 B) 15x3 + 26x2 + 3x + 42 C) 15x3 − 44x2 − 3x + 42 D) 15x3 + 26x2 − 3x
    13·2 answers
  • What is the answer to this?
    11·1 answer
  • Which of these are measures of central tendency that can be found for this list of 11th-grade students' heights?
    14·2 answers
  • Bobby built twice as many forts as his brother. If his brother built 6 forts , how many did bobby build?
    14·2 answers
  • What is the answer I need ASAP
    15·1 answer
  • Find the length of AB
    8·1 answer
  • Which value of x satisfies the equation 7/3(x+9/28)=20
    9·1 answer
  • → PLEASE HELP ME !!! [99 POINTS] ←
    11·2 answers
  • Dillard's department store is having a huge sale where everything is 30% off. When you got to the cash register because you were
    10·1 answer
  • 3/5 m=-----cmgfdddddddddddddddddddddddddddddddddddddddddddddddd
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!