Question

x square minus x minus 20 solve this ​

Answer 1

Answer:

X²-X-20

=X²-(5X-4X)-20

=X²-5X+4X-20

=X (X-5) +4 ( X-5)

=(X-5) (X+4)

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Answer 2

Step-by-step explanation:

x^2- x - 20 =0

By middle term splitting,

x^2- 5x+ 4x- 20=0

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

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

x=5

x=4