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Tanya [424]
3 years ago
11

Multiply and simplify (x-3)(x+3)

Mathematics
1 answer:
Katyanochek1 [597]3 years ago
7 0
Ok so you have to foil which is firsts, outsides, insides, last which would result in xsquared-9
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Have 5 pieces of candy and 29 people. How many pieces are the candy divided into for everyone to get a piece.
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Answer:

everyone gets 5 pieces and the rest gets thrown out

Step-by-step explanation:

29/5=5.8

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What is the result of subtracting the second equation from the first?
dusya [7]

Answer: 11x-8y=-9

Step-by-step explanation:

For this exercise you need to remember:

1) The mulitplication of signs:

(+)(+)=+\\(-)(-)=+\\(-)(+)=-\\(+)(-)=-

2) By definition, like terms contain the same variables with the same exponent.

Then knowing this, and given the equations:

8x - 4y = -4 and -3x+ 4y = 5

You must subtract the like terms, which means that you must subtract the numerical coefficients of each term.

Then, you get the result is:

8x - 4y = -4\\-3x+ 4y = 5\\...............................................\\8x-(-3x)-4y-4y=-4-5\\8x+3x-8y=-9\\11x-8y=-9

5 0
4 years ago
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