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Vinvika [58]
3 years ago
14

How do you do that?​

Mathematics
2 answers:
ehidna [41]3 years ago
7 0
Puking mabaho at mabulbul
Sati [7]3 years ago
4 0

Answer:

12u^3+36u^2+7u-20

Step-by-step explanation:

Use foil

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Please help with part b
kotykmax [81]
I don't know what ur supposed to do but if u add them it equals 31.9 sorry if that's not what you have to do
3 0
3 years ago
Read 2 more answers
PLEASE HELP!!!!!!<br><br>can you solve and explain 1-4
blagie [28]

1. 3x - 3y = 9  

to find the x or y intercept, multiply the other variable that you are not tryng to find by 0  

3x - 3(0) = 9             3(0) - 3y = 9

3x = 9                       -3y = 9

3x/3 = 9/3                 -3y/-3 = 9/-3

x = 3                           y = -3


2. I did the same thing for the rest

x = 6     y = -2


3.   x = 2.5     y = -5


4.  x = -4  y = -2/3

8 0
3 years ago
Solutions of x2 + 13x + 30 = 0 by factoring.
VMariaS [17]

Answer:

x = -10 or x = -3

Step-by-step explanation:

Here, the given equation is

x^{2}  + 13x + 30 = 0

The given equation can be solved by the method of SPLITTING THE MIDDLE TERM

Split 13 in such a way that sum of the terms = 13

and product of the terms = 30

So, the given equation becomes x^{2}  + 10x + 3x + 30 = 0

Here, 10x+ 3x = 13x and 10 x 3 = 30

Now, simplifying the equation,

x(x+10) + 3(x + 10) = 0 \\(x+3) (x+10) =0

⇒ either (x+ 10) = 0 ,or (x+ 3) = 0

⇒ x = -10 or x = -3

4 0
3 years ago
Solve.
postnew [5]

Answer:

x is 120.104121495

Step-by-step explanation:

because you can square out the equation and get x

4 0
3 years ago
Read 2 more answers
What is the equation of the graph below? A graph shows a parabola that opens up with a vertex at negative three comma negative o
Tomtit [17]

Answer:

y=(x+3)^2-1\\y=x^2+6x+8

Step-by-step explanation:

Given:

Vertex of the parabola is, (h,k)=(-3,-1)

Equation of the parabola in vertex form is given as:

y=(x-h)^2+k

Plug in h=-3,k=-1. This gives,

y=(x-(-3))^2+(-1)\\y=(x+3)^2-1

Therefore, the equation of the given graph is

y=(x+3)^2-1\\y=x^2+6x+8.

5 0
3 years ago
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