a)x^2+2x/7x
x*(x+2)\7x
x+2\7
б)2x^2-5x-12/x^2-16
2x^2+3x-8x-12\(x-4)*(x+4)
x*(2x+3)-4(2x+3)\(x-4)*(x+4)
(2x+3)*(x-4)\(x-4)*(x+4)
2x+3\x+4
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Answers & Comments
a)x^2+2x/7x
x*(x+2)\7x
x+2\7
б)2x^2-5x-12/x^2-16
2x^2+3x-8x-12\(x-4)*(x+4)
x*(2x+3)-4(2x+3)\(x-4)*(x+4)
(2x+3)*(x-4)\(x-4)*(x+4)
2x+3\x+4