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igor_vitrenko [27]
3 years ago
7

I need to know the answer

Mathematics
1 answer:
Yuri [45]3 years ago
3 0

Answer:

A only.

Step-by-step explanation:

A.<u> 2^2 + 3(2) - 10 = 0</u>

4 + 6 - 10 = 0

10 - 10 = 0

0 = 0 (correct)

<u> -5^2 + 3(-5) - 10 = 0</u>

25 + (-15) - 10 = 0

10 - 10 = 0

0 = 0 (correct)

B. <u>2</u><u>^</u><u>2</u><u> </u><u>-</u><u> </u><u>3</u><u>(</u><u>2</u><u>)</u><u> </u><u>-</u><u> </u><u>1</u><u>0</u><u> </u><u>=</u><u> </u><u>0</u>

4 - 6 - 10 = 0

-2 - 10 = 0

-12 = 0 (<em>not</em><em> </em>correct)

<u>-5</u><u>^</u><u>2</u><u> </u><u>-</u><u> </u><u>3</u><u>(</u><u>-5</u><u>)</u><u> </u><u>-</u><u> </u><u>1</u><u>0</u><u> </u><u>=</u><u> </u><u>0</u>

25 - (-15) - 10 = 0

40 - 10 = 0

30 = 0 (<em>not</em><em> </em>correct)

C. <u>2</u><u>^</u><u>2</u><u> </u><u>+</u><u> </u><u>7</u><u>(</u><u>2</u><u>)</u><u> </u><u>+</u><u> </u><u>1</u><u>0</u><u> </u><u>=</u><u> </u><u>0</u>

4 + 14 + 10 = 0

18 + 10 = 0

28 = 0 (<em>not</em><em> </em>correct)

<u>-5</u><u>^</u><u>2</u><u> </u><u>+</u><u> </u><u>7</u><u>(</u><u>-5</u><u>)</u><u> </u><u>+</u><u> </u><u>1</u><u>0</u><u> </u><u>=</u><u> </u><u>0</u>

25 + (-35) + 10 = 0

-10 + 10 = 0

0 = 0 (correct)

D. <u>2</u><u>^</u><u>2</u><u> </u><u>-</u><u> </u><u>7</u><u>(</u><u>2</u><u>)</u><u> </u><u>+</u><u> </u><u>1</u><u>0</u><u> </u><u>=</u><u> </u><u>0</u>

4 - 14 + 10 = 0

-10 + 10 = 0

0 = 0 (correct)

<u>-5</u><u>^</u><u>2</u><u> </u><u>-</u><u> </u><u>7</u><u>(</u><u>-5</u><u>)</u><u> </u><u>+</u><u> </u><u>1</u><u>0</u><u> </u><u>=</u><u> </u><u>0</u>

25 - (-35) + 10 = 0

60 + 10 = 0

70 = 0 (<em>not</em><em> </em>correct)

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