Question

x²+x-20=0by quadratic equations​

Answer 1

Step-by-step explanation:

x² + x -20 = 0

x² + 5x - 4x - 20 = 0

x(x + 5) -4(x + 5) = 0

(x + 5) (x - 4) = 0

x = -5 or x = 4

Answer 2

Answer:

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