Question

answer these question​

Answer 1

x^2 -5x -300= 0

= x^2-20x+15x-300 =0

= x(x-20) + 15(x-20) =0

= (x-20)(x+15)= 0

x= 20. or. x= -15

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Answer 2

x^2-5x-300=0

×^2-20×+15x-300=0

x(x-20)+15(x-20)=0

(x-20) (x+15)=0

×=20.or.x=-15

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