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FrozenT [24]
3 years ago
12

Using Algebra tiles, show a model of 3x.​

Mathematics
1 answer:
jenyasd209 [6]3 years ago
3 0

its the first option.

tiles of X and tiles of 1 are different

3 tiles of "X" = 3X

3 tiles of " 1 " = 3

option 3 does not mean 3X, it just means 3X + 3

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When 5 is subtracted from the square of a number, the result is 4 times the number. Find the negative solution.
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Answer:

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Step-by-step explanation:

You can write it as...

x^{2} -5=4x

Carry the 4x

x^{2} -4x-5=0

Then use the quadratic formula to solve, since you want to find the negative solution, you don't need to find the positive solution, so we will have

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