Question

[tex] \frac{5-x^2} }{2}*\frac{5- x^{2} }{2} * \frac{6 x^{2} }{ x^{2} -10x+25}

Answer 1

$\displaystyle\frac{5- x^{2} }{2} \cdot\frac{6 x^{2} }{ x^{2} -10x+25} = \frac{-(x-5)(x+5)}{2}\cdot \frac{6x^2}{(x-5)^2} =\frac{3x^2(x+5)}{5-x}$