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4 years ago

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The expression 25x2 - 81 can be rewritten as (5x - 9)(5x + 9). (5x - 9) is a ____ of 25x2 - 81. A) divisor B) factor C) multiple

D) zero

1 answer:

stich3 [128]4 years ago

4 0

Ans: B
The method (a^2-b^2) is considered as one of the many ways of factorisation.

Hope this can help.

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<em>Answer:</em>

<em>25</em>

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

<em>Hi there !</em>

<em>6×7 - 3²×9 + 4³ =</em>

<em> 1. raise the numbers to power</em>

<em>= 6×7 - 9×9 + 64</em>

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<em> 3. we perform addition and subtraction</em>

<em>= (42 + 64) - 81</em>

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<em>Good luck !</em>

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Answer:

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