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How do you factor #9x^2 - 42x + 49#?

Answer 1

Ethan Adkins

#(3x - 7)^2#

#9x^2 - 42x + 49 = (3x - 7)^2#

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Answer 2

Eva Abramson

To factor the expression (9x^2 - 42x + 49), you can use the factoring technique known as the perfect square trinomial. This expression can be factored into ((3x - 7)^2).

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Answer from HIX Tutor

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

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