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grandymaker [24]
2 years ago
15

Expand and simplify x(x + 2)(x + 4)

Mathematics
1 answer:
babymother [125]2 years ago
5 0

Answer:

Step-by-step explanation:

Comment

Expand the second and 3rd factors first. Then worry about the x.

Solution

x(x + 2)(x + 4)

<em>first</em>: x * x =  x^2

<em>Outside</em>: 4*x = 4x

<em>Inside</em>: 2*x = 2x

<em>Last:</em> 2*4 = 8

Combine

x^2  + 4x + 2x + 8

x^2 + 6x + 8

Now is the time to worry about the extra x

x(x^2 + 6x + 8)

remove the brackets.

x*x^2 + x*6x + 8*x                

Combine

Answer: x^3 + 6x^2 + 8x            

           

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