ligma17 ligma17
  • 20-12-2018
  • Mathematics
contestada

if f(×)=2x^2-5 and g(×)=3×+3 find (f-g)(×)
a.3x-2x^2-2
b.2x^2-3x-2
c.-x^2-7
d.2x^2-3x-8

Respuesta :

AlbertThomas
AlbertThomas AlbertThomas
  • 27-12-2018
The answer is:
[tex]2 {x}^{2} - 5 - 3x - 8 = 2 {x}^{2} - 3x - 8[/tex]
Answer Link
wegnerkolmp2741o
wegnerkolmp2741o wegnerkolmp2741o
  • 27-12-2018

Answer:

d.  2x^2    -3x  -8

Step-by-step explanation:

if f(×)=2x^2-5 and

g(×)=3×+3

(f-g)(×)=

I like to line them up vertically

2x^2-5

-(3x+3)

-------------------

Distribute the minus sign

2x^2-5

-3x-3

-------------------

Line up the powers


2x^2+ 0x   -5

           -3x-3

-------------------

2x^2    -3x  -8

Answer Link

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