4 years ago

Multiply the polynomials (a^2+3a-7) and (a+4) simplify answer + show work

Mathematics

1 answer:

Anton [14]4 years ago

3 0

= a^3 +3a^2-7a+4a^2+12a-28
=a^3 +7a^2+5a-28

You might be interested in

How many solutions does the system formed by x - y = 3 and ay + 3a = 0 have for a non zero number a? Explain and show how you ge

dlinn [17]

Solve both equations for y:
$x-y=3 \ \ \ |-x \\
-y=-x+3 \ \ \ |\times (-1) \\
y=x-3 \\ \\
ay+3a=0 \ \ \ |-3a \\
ay=-3a \ \ \ |\div a, a \not= 0 \\
y=-3$

Set the expressions equal to each other:
$y=y \\ x-3=-3 \ \ \ |+3 \\
x=0 \\ \\
(x,y)=(0,-3)$

So, for every nonzero number a the system of equations has one solution.

4 0

3 years ago

8. Line ZX and Line WY are secants of circle V, as shown below.

lisabon 2012 [21]

Answer: take a protractor to the unkown sides to find the angle degrees and to check add them up and see if it is 360 degrees

Step-by-step explanation:

6 0

3 years ago

A golden eagle flies a distance of 290 miles in 5 days.if the eagle flies the same distance each day of its journey, how far doe

salantis [7]

58 miles because 290/5=58

7 0

3 years ago

3<br> Which expression is equivalent - 3/8 / - 1/4

FrozenT [24]

Answer:

3/8 - 1/4 = 1/

= 0.125

Step-by-step explanation:

brainliest please.

if your not sure with my answer don't go with it.

4 0

3 years ago

The ordered pairs shown below follow a pattern. (0,2), (1,3), (2,4), (3,5), (4,6) Which graph shows the ordered pair with an x-c

geniusboy [140]

Can I see the other two that u didn't showw

3 0

3 years ago