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kifflom [539]
3 years ago
10

What is the answer for this problem if f(x)= 3x+10x and g(x)=5x-3, find (f+g)(x).

Mathematics
2 answers:
hammer [34]3 years ago
6 0
(f+g)(x) =f(x)+g(x)=3x+10x+5x-3=\boxed{18x-3}\ D.
Andreyy893 years ago
3 0
<span>This just means that f(x) and g(x) are added, so (f+g)(x) = f(x)+g(x)
f(x)+g(x) = 3x+10x+ 5x-3 = 18x-3
</span>
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jek_recluse [69]

9514 1404 393

Answer:

  1. 2x
  2. 2
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Step-by-step explanation:

1.

  \displaystyle\frac{8x^2-4x}{4x-2}=\frac{4x(2x-1)}{2(2x-1)}=\boxed{2x}

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2.

  \displaystyle\frac{8x-4}{x+3}-\frac{12x-20}{2x+6}=\frac{8x-4}{x+3}-\frac{4(3x-5)}{2(x+3)}=\frac{8x-4-2(3x-5)}{x+3}\\\\=\frac{8x-4-6x+10}{x+3}=\frac{2x+6}{x+3}=\frac{2(x+3)}{x+3}=\boxed{2}

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3.

  \displaystyle\frac{(2x+10)^7}{(x+5)^6}=\frac{(2(x+5))^7}{(x+5)^6}=2^7(x+5)^{7-6}=128(x+5)\\\\=\boxed{128x+640}

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Step-by-step explanation:


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Mashcka [7]
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