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Sphinxa [80]
4 years ago
11

Simplify the expression 2x+2x(x−3x)+7

Mathematics
1 answer:
azamat4 years ago
3 0

2x + 2x^2 -6x^2 + 7

answer is

-4x^2 + 2x + 7

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Here, we know that the total distance is 150, so d = 150. Also, we are given that Sergio's rate is 60 mph, so r = 60. Put these in:

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To solve for t, we divide both sides by 60. Because we are dividing and not multiplying, we know that B is the only one that is incorrect.

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