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What are the solutions of y = x^2-x-20?
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4 votes
What are the solutions of y = x^2-x-20?

User Saurabh Mahajan
by
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1 Answer

3 votes

Answer:

(x - 5) and (x + 4)

Explanation:

Since -20 = (-4)(5) or (4)(-5), and since -5x + 4x becomes -1x, we know right away that the factors are (x - 5) and (x + 4).

User Nadira
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