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10-11-2020
Mathematics

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Factor: 100x^2- 81
A. (100r-9)(x-9)
B. (10r - 9)^2
C. (10x + 9)^2
D. (10x + 9)( 10x -9)

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10-11-2020

Answer:

Choice 'D' (10x + 9) (10x-9) is the correct answer

Step-by-step explanation:

100x^2 - 81

This is a difference of squares...

therefore = (10x + 9) (10x - 9)

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