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4 years ago

How do you expand the following?(X+8)(x-8)

Mathematics

2 answers:

Bad White [126]4 years ago

6 0

Answer:

x^2−64

Step-by-step explanation:

(x+8)(x−8)

=(x+8)(x+−8)

=(x)(x)+(x)(−8)+(8)(x)+(8)(−8)

=x^2−8x+8x−64

=x^2−64

Ratling [72]4 years ago

6 0

Answer:

Use the Foil method, x*x = x^2, 8x-8x = 0, 8*(-8) = -64, so the answer is x^2-64!

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Step-by-step explanation:

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Step-by-step explanation:

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1. Find a if x³ + ax² - x -8 is divisible by x -1

Amanda [17]

Answer:

a = 8

Step-by-step explanation:

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3 years ago

How do you expand the following?(X+8)(x-8)​

How do you expand the following?(X+8)(x-8)