Question

${x }^{2} + x - 20 = 0$
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Answer 1

Answer:

PLEASE MARK IT AS BRAINLIEST

Step-by-step explanation:

x=4

x=-5

Answer 2

Answer:

Let, f(x) = x²+ x - 20 =0

Sum = 1

Product = -20

Values = -4,5

f(x) = x² -4x +5x - 20 =0

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

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

=> x = -5,4