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Elena-2011 [213]
3 years ago
10

How do you solve these

Mathematics
1 answer:
yuradex [85]3 years ago
4 0

1) 5x-2x+6-4

5(2)-2(2)+6-4    So plug in 2 for x

Solve on calculator or just distribute it out

10-4+6-4

6+6-4

12-4

8 is your answer


4) 4x-8 is the same as 2(2x-4) if you distribute this out your outcome would be 4x-8

5)

a) 2(3x+4)

6x+8

b)-4(5x+5)

-20x-20

c) -2x+2(4x+1)

Pemdas so

-2x+8x+2

6x+2


d) 5x+2(3x-4)-10

5x+6x-8-10

11x-18

Hope that helps!

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For the functions f(x) = 2x – 3 and g(x) = 5x + 5, find (f • g)(x).
Nimfa-mama [501]

Answer:

f(g(x)) = 10x + 7

Step-by-step explanation:

(f . g)(x) = f(g(x)) is the composition of the functions f(x) and g(x).

f(g(x)) means that g(x) becomes the input for f.

Now, f(x) = 2x - 3 and g(x) = 5x + 5.

f(g(x)) = f(5x + 5)

         = 2((5x + 5) - 3)

         = 10x + 10 - 3

         = 10x + 7

f(g(x)) = 10x + 7 is the required answer.

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causes

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