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AleksAgata [21]
3 years ago
15

Find the product. (a3 + 8)(a3 – 8)

Mathematics
2 answers:
Tomtit [17]3 years ago
8 0
<h2>Answer:</h2>

Option: D is the correct answer.

The product is:

       D.    a^6-64

<h2>Step-by-step explanation:</h2>

We are asked to simplify the given algebraic expression i.e. we have to find the product of two algebraic expressions, which are a polynomial in terms of "a"

As both are cubic polynomial so there product will be a six-degree polynomial.

( Since on  multiplying the degree gets add up )

                   The expression is as follows:

                  (a^3+8)(a^3-8)

We know that:

(a+b)(a-b)=a^2-b^2

Hence we get the product as:

(a^3+8)(a^3-8)=(a^3)^2-(8)^2\\\\\\i.e.\\\\\\(a^3+8)(a^3-8)=a^6-64

                 Hence, the product is:

                        a^6-64

kogti [31]3 years ago
6 0
1. Use difference of squares: a^2-b^2=(a+b)(a-b)
(a^3)^2-8^2
2. Use power rule: (x^a)^b=x^(ab)
a^6-8^2
3. Simplify 8^2 to 64
a^6-64

Your answer is d. 
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Answer:

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Step-by-step explanation:

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I multiplied the first equation by -2 to eliminate the 'a' terms

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solve for 'a'

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a + 514 = 777

a = 263

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