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mr Goodwill [35]
3 years ago
12

Simplify the expression below. (-3x2 + 2x - 4) + (4x2 + 5x +9)

Mathematics
2 answers:
TiliK225 [7]3 years ago
4 0

Answer: =x2+7x+5

Step-by-step explanation:

−3x2+2x−4+4x2+5x+9

=−3x2+2x+−4+4x2+5x+9

Combine Like Terms:

=−3x2+2x+−4+4x2+5x+9

=(−3x2+4x2)+(2x+5x)+(−4+9)

=x2+7x+5

Answer:

=x2+7x+5

GenaCL600 [577]3 years ago
3 0

Answer:

x^2+7x+5

Step-by-step explanation:

Remove parentheses: -3x^2+2x-4+4x^2+5x+9

Group like terms: -3x^2+4x^2+2x+5x-4+9

Add similar elements: x^2+2x+5x-4+9

Add/subtract the numbers: x^2+7x+5

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Answer:

Step-by-step explanation:

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8 0
2 years ago
A researcher is interested in the texting habits of high school students in the United States. The researcher selects a group of
vlabodo [156]

Answer:

(a)High school students in the United States.

(b)100 Students

(c)Statistic

Step-by-step explanation:

(a)Since the researcher is interested in the texting habits of high school students in the United States, the population for this study consists of all high school students in the United States.

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3 0
3 years ago
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madam [21]

Answer:

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3 0
3 years ago
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8 0
3 years ago
Read 2 more answers
X-3.5= -3.1 I'm confused​
tangare [24]

Answer:

See Below

Step-by-step explanation:

First, isolate x. To do that add 3.5 to each side

x - 3.5 =  -3.1

  +3.5    +3.5

x= 0.4

3 0
3 years ago
Read 2 more answers
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