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Kaylis [27]
3 years ago
15

What is the value of x?

Mathematics
2 answers:
HACTEHA [7]3 years ago
6 0
The answer is 20 
20+40=60
3(20)=60

Lynna [10]3 years ago
5 0
Oof i even got confused

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3^2 - 2x + 4 and g(x) = 5x^2 + 6x - 8 find f-g(x)
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Answer:

For the given functions f(x) and g(x) (f-g)(x) = -2x^{2}  - 8x +12

Step-by-step explanation:

Here, the given function are:

f(x)  = 3x^{2}  - 2x+ 4\\g(x) = 5x^{2}  + 6x -8

Now, simplifying for (f-g)(x)  =  f(x) -  g(x):

f(x) - g(x)  = (3x^{2}  - 2x+ 4) - (5x^{2}  + 6x -8)

 = 3x^{2}  - 2x+ 4- 5x^{2}  - 6x +8

Doing operation on LIKE TERMS,  we get

f(x) -  g(x) = ( 3x^{2}- 5x^{2})   + (-2x - 6x)  +( 4 +8) = -2x^{2}  - 8x + 12

Hence, for the given functions f(x) and g(x) (f-g)(x) = -2x^{2}  - 8x +12

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