Question

помогите пожалуйста с меня 20 баллов​

Answer 1

1) $8^{12}*8^{7}*8^{-17}=8^{12+7-17}=8^{2}=64$

2) $a^{9}:a^{4}:a^{0}=a^{9-4-0}=a^{5}$

$16400000=1.64*10^{7}$

$c^{28}*c^{15}:(c^{41}*c)=c^{28+15}:c^{41+1}=c^{43}:c^{42}=c^{43-42}=c$

$\frac{x^{14}y^{6}}{x^{7}y^{3}} =x^{14-7}y^{6-3}=x^{7}y^{3}=1^{7}*1^{3}=1$

$0.16*(-10)^{2}-2^{2}=0.16*100-4=16-4=12$

$\frac{(a^{7})^{3}(x^{5})^{4}}{(a^{4})^{3}(x^{8})^{2}} =\frac{a^{7*3}x^{5*4}}{a^{4*3}x^{8*2}} =\frac{a^{21}x^{20}}{a^{12}x^{16}} =a^{21-12}x^{20-16}=a^{9}x^{4}$

$\frac{a^{6}}{y^{11}} =a^{6}*y^{-11}$

$4^{-1}x^{5}y^{-3}==\frac{x^{5}}{4y^{3}}$

$\frac{5a^{10}-3a^{6}}{a^{5}} =\frac{a^{5}(5a^{5}-3a)}{a^{5}} =5a^{5}-3a$