Question

Сократите дроби а)28a^6b^8c^3 36a^7b^8c б)y^2-9x^2 18x^2-6xy

Answer 1

$1) frac{28a^{6} b^{8} c^{3} }{36a ^{7} b^{8} c} = frac{7c^{2} }{9a} \ \ 2) frac{y ^{2} -9 x^{2} }{18 x^{2} -6xy} = frac{(y-3x)(y+3x)}{6x(3x-y)} =-frac{(y-3x)(y+3x)}{6x(y-3x)} =- frac{y+3x}{6x}$