3 years ago

For the question "Which binomial is a factor of 9x² – 64?

Mathematics

1 answer:

SashulF [63]3 years ago

6 0

Answer:

3x-8

Step-by-step explanation:

9x²-64 is the same as

(3x)² - 8²

now we have the difference of 2 squares, a²-b² =(a -b)(a +b), where a=3x, b=8

9x²-64 = (3x-8)(3x+8)

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