упростите выражение a)4^5*4^7;b)x^2*x^4*x^5 v)a^7*a^4 g)0.2^5*0.2^3 d)c^10 :c^8 e)c^8*c^3 ё)13^8:13^7 ж)n^5*n^12 з)a^5*a^7*a^4
a)4^5*4^7 = 4^(5+7) = 4^12
б)x^2*x^4*x^5 = x^(2+4+5) = x^11
в)a^7*a^4 = a^(7+4) = a^11
г)0.2^5*0.2^3 = 0.2^(5+3) = 0.2^8 = 0,00000256
д)c^10 :c^8 = c^(10-8) = c^2
e)c^8*c^3 = c^(8+3)= c^11
ё)13^8:13^7 = 13^(8-7) = 13^1 = 13
ж)n^5*n^12 = n^(5+12) = n^17
з)a^5*a^7*a^4 = a^(5+7+4) = a^16