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frozen [14]
2 years ago
10

Simplify: (p-q)^2 + 2pq

Mathematics
1 answer:
lorasvet [3.4K]2 years ago
7 0

Answer:

(p-q)^2+2pq

= p^2-2pq+q^2+2pq

= p^2+q^2

Step-by-step explanation:

Please mark me the brainliest :-)

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2 Points
liraira [26]

Two or zero expresses the possible number of positive real  solutions for the given polynomial equation.

Answer: Option D

<u>Step-by-step explanation:</u>

Given equation:

        x^{3}-4 x^{2}-7 x+28=0

First, we put hit and trial method to find out the one solution. So, if we put x=4 then the above expression will become zero.  We can also write the above expression as  

      (x-4) \times\left(x^{2}-7\right)=0

We know the formula, a^{2}-b^{2}=(a+b)(a-b), make use of this, we get

   (x-4) \times(x-\sqrt{7}) \times(x+\sqrt{7})=0

So, x=4, \sqrt{7},-\sqrt{7}

Hence, from the above expression, we have three values of x as x= 4, 2.64 and -2.64

8 0
3 years ago
1/2(x + 1)²- 3
Ierofanga [76]

Answer:

  • a = 1/2
  • h = -1
  • k = -3

Step-by-step explanation:

We assume you want to compare your expression to the form ...

  a(x -h)² +k

  1/2(x +1)² +k

The multiplier outside parentheses is ...

  a = 1/2

The horizontal offset inside parentheses is ...

  -h = 1

  h = -1

The vertical offset outside parentheses is ...

  k = -3

4 0
2 years ago
The midpoint of AB is M (-6,-4). If the coordinates of A are (-4,-3), what are the coordinates of B
VladimirAG [237]
Exact qurdnats I think
4 0
3 years ago
(5x²-4x-1)+(2x²-3x+6) simplified
Lady bird [3.3K]
Answer: 7x² - 7x + 5
3 0
2 years ago
Will give 5 star, thanks, and brainliest for correct answers
algol13
1) X=159
2) BCD=103
3) DCH=89
im pretty sure


7 0
2 years ago
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