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Lelechka [254]
4 years ago
14

(5x+1)(5x-1) combine terms

Mathematics
1 answer:
Alinara [238K]4 years ago
5 0

Answer:

25x^2 -1

Step-by-step explanation:

If you multiply parentheses:

(5x*5x) + (5x*-1) + (1*5x) + (1*-1)

25x^2 - 5x + 5x -1

25x^2 -1

A simpler way is to memorize this formula

(Square1 - square2)= (sqrt of square1- sqrt of square2)*(sqrt of square1 + sqrt of sqaure2)

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Combine the like terms and create an equivalent expression: -5r+8r+5
mart [117]

Answer:

3r+5

Step-by-step explanation:

7 0
3 years ago
Solve for the variable:<br> 1. (x-3)² = <img src="https://tex.z-dn.net/?f=x%5E%7B2%7D" id="TexFormula1" title="x^{2}" alt="x^{2}
myrzilka [38]

Answer:

The answer to your question is:

1) x = 4

2) x = -2

Step-by-step explanation:

a)                     (x-3)² = x^{2} - 10x +25

                     x² - 6x + 9 = x² - 10x + 25

                    10x - 6x = 25 - 9

                     4x = 16

                     x = 4

b)

                                   (x+4)³ = x³ + 12x² - 16x

               x³ + 3(x²)4 + 3x(16) + 4³= x³ + 12x² - 16x

              x³ + 12x² + 48x + 64 = x³ + 12x² - 16x

               48x + 64 = 16x

               48x - 16x = -64

                32 x = -64

                x = -64/2

               x = -2

3 0
3 years ago
Davis knows that the area of his square shaped bag is 81 ft squared. what is the length of any side of the bag?
LiRa [457]


area = l x w

area = 9 x 9

area =  81

Hope this was helpful. :-)



4 0
4 years ago
Read 2 more answers
There are ? five-card hands consisting of two spades and three non-spades ​
max2010maxim [7]

Answer:

If you have any more questions text 3856026122

Step-by-step explanation:

24, 10 or 5

5 0
3 years ago
Gerald went to a bake sale and found a pan of brownies that had ⅖ of the brownies remaining. He asked to buy ⅓ of the remaining
maria [59]

Answer:

instead of  2/9 he put 29

Step-by-step explanation:

he put 29 instead of 2/9.

4 0
3 years ago
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