dahnibin4
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Which of the following would best be solved using factoring by grouping?
3x^2 + 12x = 8 or x^2 + 3x - 10 = 0 or x^2 = 25 or x^3 + 5x^2 - 9x - 45 = 0

Respuesta :

eesha399

Answer:

the last one: x^3 + 5x^2 - 9x - 45 = 0

Step-by-step explanation:

You can solve all the other ones by simple factoring and/or calculator.

Since the last one has more than 3 terms, it's likely that you'll have to use group factoring to solve it.

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