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2 years ago

-2x^2-3x-9+-3x^2-4+6

Mathematics

1 answer:

hodyreva [135]2 years ago

7 0

Answer:

-2x^2-3x-9+-3x^2-4+6

16x - 3x - 9 + 9x - 4 + 6

13x - 9 + 9x + 2

13x + 9x -9 + 2

21x -7

Step-by-step explanation:

-2x^2-3x-9+-3x^2-4+6

16x - 3x - 9 + 9x - 4 + 6

13x - 9 + 9x + 2

13x + 9x -9 + 2

21x -7

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2 years ago

Ex plane how knowing 50 x 4 = 200 helps you find 500 x 400

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Answer:

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3 years ago

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Which points are on the graph of the equation - 3x + 6y + 5 = -7?

ludmilkaskok [199]

Answer:

C and E

Step-by-step explanation:

To solve this problem, let's plug in each coordinates into the equation.

$-3(-3) + 6(6) + 5 = -7$
$9 + 36 + 5 = -7$
$50 = -7$
$50 \neq -7$
A. cannot be the answer, as 50 does not equal -7.

$-3(-2) + 6(0)+5=-7$
$6+0+5=-7$
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$11\neq -7$
B. cannot be the answer, as 11 does not equal -7.

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$-12 + 5 = -7$
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E. can be the answer, as -7 does equal -7.

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2 years ago

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malfutka [58]

Answer:

Step-by-step explanation: a real one for the points

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