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3 years ago

Simplify the following expression. (4x − 8)(4x + 8)

Mathematics

1 answer:

vitfil [10]3 years ago

4 0

Answer:

16x^2 - 64

Step-by-step explanation:

(4x − 8)(4x + 8)

We recognize that this is the difference of squares

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

=(4x)^2 - 8^2

=16x^2 - 64

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Look down below for question:

ale4655 [162]

Area of ABC : AB*AC/2

the maximum of the parabola is reached at x=-4/(2*(-1))=2 hence A is at (2,0) and B is at (2,(-2)^2+4*2+C)=(2,12+C)

C is the second root (x-intersect), which we can find :

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4 years ago

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Answer:

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Step-by-step explanation:

Multiply by 3 first

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