Gryphon12345 Gryphon12345

14-12-2018
Mathematics

contestada

If f(x)=x2-2x and g(x) = 6x+4, for which values of x does (f+g)(x)=0

Respuesta :

14-12-2018

[tex]f(x)=x^2-2x;\ g(x)=6x+4\\\\(f+g)(x)=f(x)+g(x)\\\\(f+g)(x)=0\Rightarrow(x^2-2x)+(6x+4)=0\\\\x^2+(-2x+6x)+4=0\\\\x^2-4x+4=0\\\\x^2-2x-2x+4=0\\\\x(x-2)-2(x-2)+0\\\\(x-2)(x-2)=0\iff x-2=0\\\\\boxed{x=2}[/tex]

Answer Link

Otras preguntas

"in the arctic, scientists are using a device called the "rosette." the rosette helps the scientists __________."

Marta made a fruit salad with 30 strawberries and 50 grapes. Assuming each strawberry contains 6 calories and each grape contains 3 calories, and that each of h

You receive money as payment for babysitting your neighbors' children. this best illustrates which function of money

Which functions domain consists of all real numbers greater than 3

Determine the coordinates of the point on the unit circle corresponding to the given central angle. If necessary, round your results to the nearest hundredth. 2

Andre placed some quarters and 1 dime into a money-counting machine. The machine reported that Andre has more than $5.00. Which inequality can be solved to find

standard form (1.5*10^-3) * (2*10^4)

What is the MOST LIKELY reason that Atlanta's civic leaders wanted the city to host the 1996 Summer Olympics?

Create a timeline of great discoverers and discoveries in the science, technology, engineering, and mathematics fields.

Refers to the ability to identify the person or entity with whom you are dealing on the internet