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swat32
4 years ago
12

Simplify the expression -2(p+4)^2-3+5p what is the simplified expression in standard form?

Mathematics
1 answer:
kolbaska11 [484]4 years ago
6 0

Answer

I got p-19 i might be wrong

Step-by-step explanation:

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Which shows the correct substitution of the values a, b, and c from the equation –2 = –x + x2 – 4 into the quadratic formula?
dimaraw [331]

Answer:

We substitute x=\frac{-(-1)+/-\sqrt{(-1)^2-4(1)(-2)} }{2(1)}

And simplify x=\frac{1+/-\sqrt{1-4(1)(-2)} }{2}

Step-by-step explanation:

First we rearrange the equation -2=-x+x2-4 into standard form of a quadratic ax^2+bx+c=0. This equation becomes x^2-x-2=0 where a=1, b=-1, and c=-2.

The formula is:

x=\frac{-b+/-\sqrt{b^2-4ac} }{2a}.

We substitute x=\frac{-(-1)+/-\sqrt{(-1)^2-4(1)(-2)} }{2(1)}

And simplify x=\frac{1+/-\sqrt{1-4(1)(-2)} }{2}

x=\frac{1+/-\sqrt{1+8} }{2}

x=\frac{1+/-\sqrt{9} }{2}\\x=\frac{1+/-3 }{2}\\x=2,-1


8 0
3 years ago
PLZZZZ HELP AMEDIENTLY
pav-90 [236]

Answer:

I am not sure if I am right, but in my opinion, it is a valid sample, since they are participating and getting paid, so I would personally go for the third option, but the decision is on you.

4 0
3 years ago
A play ended at 7:30.It began 1hour and 10minutes earlier.At what time did the play began.
irakobra [83]

Answer:

6:20

Step-by-step explanation:

One hour less of 7:30 is 6:30 -20 min= 6:20

6 0
2 years ago
7x²x + 3x3 – 2x²(x² + 2x - 1)​
Bad White [126]

Answer:

− 2 x^ 4  + 6 x^ 3  +  2 x^ 2

Step-by-step explanation:

3 0
4 years ago
The difference in the x-coordinates of two points is 3, and the difference in the y-coordinates of the two points is 6. What is
Makovka662 [10]
To find the slope, use the rise/run technique with rise as the difference in y-coordinates and run as the difference in x-coordinates.  So, the rise is 6 units and the run is 3 units in this situation.  Now simply put it as a fraction: 6/3, which can be simplified to 2/1, or 2.
5 0
4 years ago
Read 2 more answers
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