Question

СРОЧНО ПОМОГИТЕ!!!! ​

Answer 1

Пошаговое объяснение:

$1.\\a)(\frac{b^{6} }{b^{2}})^{3}=\frac{b^{18}}{b^{6}}=b^{12}\\\\b)(b^{4}b^{3})^{2}=(b^{7})^{2}=b^{14}\\\\c) b^{4}(b^{3})^{2}=b^{4}*b^{6}=b^{10}$

$2.\\6a(a+1)-(3+a)^{2}=6a^{2}+6a-(a^{2}+6a+9)=6a^{2}+6a-a^{2}-6a-9=5a^{2}-9$

$3.\\\\ \frac{6c+2c^{2} }{c^{2}-9}=\frac{2c(c+3)}{c^{2}-9}=\frac{2c}{c-3}$