3 years ago

HELP PLZ

1 answer:

4 0

Answer:

Step-by-step explanation:

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zheka24 [161]

Assuming "i" is an imaginary unit:
$(-7i)(2+i)+(2i)(-7i)=\\
-14i+7+14=\\
21-14i$

5 0

4 years ago

Sophie [7]

Step-by-step explanation:

$\frac{10 {x}^{3} - 12 {x}^{2} + 6x - 7 }{ - 14 {x}^{2} - 1 }$

-14x²-1≠0

x²≠ -1/14

Option C

5 0

4 years ago

Vsevolod [243]

Answer:

75,575 - ten-thousands place; this 7 is worth 70,000

75,575 - thousands place; this 5 is worth 5,000

75,575 - hundreds place; this 5 is worth 500

75,575 - tens place; this 7 is worth 70

75,575 - ones place; this 5 is worth 5

8 0

3 years ago

Alchen [17]

Since they’re the same thing except for the sign, the answer is -1

6 0

3 years ago

forsale [732]

Answer:

Step-by-step explanation:

$8x^3+12x=\\4(2x^3+3x)=\\4x(2x^2+3)$

Therefore, the correct answer is D. Hope this helps!

8 0

3 years ago