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alisha [4.7K]
3 years ago
9

3x^2+7x+3 + 5x^2+12x

Mathematics
2 answers:
Anton [14]3 years ago
8 0

Hello there,

3x^2+7x+3

+ 5x^2+12x

Answer: 8x^2+19x



Dvinal [7]3 years ago
5 0

Answer:

8x^2+19x

Step-by-step explanation:

Simplify the expression by combining like terms. Terms which look a like and sound a like should be added together.

3x^2+7x+3+5x^2+12x

x^2 terms: 3x^2+5x^2=8x^2

x terms: 7x+12x=19x

constants: 3

Together is is 8x^2+19x+3.

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Step-by-step explanation:

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3 years ago
F(x) = ax2 - 12, g(x) = 2x +3, and f(3) = 24. What<br> is the value of g(f(2)) ?
elixir [45]
<h2>Answer:    g(f(2))  = 11</h2>

Step-by-step explanation:

g(f(2)) is substituting the value of f(2) for x in g(x). But we must first find f(2).

We know that f (x) = ax² - 12

Since f(3) = 24

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⇒ g(f(2)) = 2(4) + 3

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6 0
2 years ago
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Answer:

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Answer:

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Step-by-step explanation:

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