Помогите сократить дроби!))

Question

Помогите сократить дроби!))

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Answer 1

Y^2-3y-4=(y-3)(y+1)
y^2-1=(y-1)(y+1)
((y-3)(y+1))/((y-1)(y+1))=(y-3)/(y-1)

x^2-5x+4=(x-4)(x-1)
x^2-16=(x-4)(x+4)
((x-4)(x+4))/((x-4)(x-1))=(x+4)/(x-1)

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Comments

Благодарю ;)