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Lerok [7]
3 years ago
12

Simplify the expression 3(x + 2)(x2 − x − 8).

Mathematics
1 answer:
expeople1 [14]3 years ago
8 0

Answer:

3x^3+3x^2-30x -48

Step-by-step explanation:

we apply distributive property

3(x + 2)(x^2 − x − 8)

so we have:

(3*x+3*2)(x^2 − x − 8)

(3x+6)(x^2 − x − 8)

3x*x^2 - 3x*x -3x*8 + 6*x^2 -6*x -6*8

3x^3-3x^2-24x +6x^2 -6x -48

3x^3+3x^2-30x -48

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3 0
3 years ago
Alvin is 7 years younger than Elgas. The sum of their ages is 63. What is Elgas age?
Elden [556K]

Answer:

Elgas is 35.

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Let's set up an equation.

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A = E - 7

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Let's use substitution.

Plug in the first equation of A into the second equation.

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Add 7 to both sides.

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Hope this helps!

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3 years ago
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