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Factorsof (y2 + 4y - 45) a are |
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Answer» ( y+9) ( y-5)Step-by-step EXPLANATION:y² + 4y - 45Factors of -45 that when added or subtracted the result is 4.Factors= 1, 3, 5, 9, 15 and 45 -1, -3, -5, -9, -15 and -45. 9 X -5 = -45, 9-5=4= y² + 9y - 5y - 45 {now we should take common}= y ( y + 9) - 5( y+ 9) { here it BECOMES +9 because - and - make +}= ( y+9) ( y-5) Hope it was helpful. Please don't hesitate to ask of you have any DOUBT. Take care |
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