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babunello [35]
3 years ago
6

What is the product of a+3 and -2a2+15a+6b2

Mathematics
2 answers:
vitfil [10]3 years ago
6 0

Answer:

-2a³+ 9a²  + 45a +6ab² +  18b².

Step-by-step explanation:

Given : a+3 and -2a²+15a+6b².

To find : what is the product.

Solution : We have given

(a+3)( -2a²+15a+6b²).

Distributes a over (-2a²+15a+6b²) and 3 over (-2a²+15a+6b²).

a (-2a²+15a+6b²) + 3 ( -2a²+15a+6b²).

-2a³+15a²+6ab² - 6a²+ 45a + 18b².

Combine like terms

-2a³-  6a² + 15a² + 45a +6ab² +  18b².

-2a³+ 9a²  + 45a +6ab² +  18b².

Therefore, -2a³+ 9a²  + 45a +6ab² +  18b².

DaniilM [7]3 years ago
3 0

Answer:

The third option

Step-by-step explanation:

Given

(a + 3)(- 2a² + 15a + 6b²)

Each term in the second factor is multiplied by each term in the first factor, that is

a(- 2a² + 15a + 6b²) + 3(- 2a² + 15a + 6b²) ← distribute both parenthesis

= - 2a³ + 15a² + 6ab² - 6a² + 45a + 18b² ← collect like terms

= - 2a³ + 9a² + 45a + 6ab² + 18b² → C

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7 0
4 years ago
The graph of a line passes through the points (0, -2) and (6.0). What is
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Answer:

y=\frac{1}{3}x-2

Step-by-step explanation:

The equation of a line is given in the form  y=mx+b

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and

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Now we have

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5 0
3 years ago
Change 3/4 to decimal ​
vodomira [7]

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B

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Expanding you get 100x^4 + 30x^2 + 9

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It has to be B

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