4 years ago

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:

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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.

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4 years ago

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