Y=5-4x
3x+5(5-4x)= -9
3x+25-20x = -9
-17x=-34
x=2
Дано
a1=2
a6=37
________
a2? a3? a4? a5?
Решение
a6-a1=(6-1)d
37-2=5d
35=5d
d=7
a2=a1+d=2+7=9
a3=a2+d=9+7=16
a4=a3+d=16+7=23
a5=a4+d=23+7=30
-3x > -9 <=> 3x < 9 <=> x < 3
√27·⁵√243 -3¹/² =√27·(3⁵)¹/⁵ -3¹/²=3√3·3 -√3=√3(9-1)=8√3;
[3^(-5/3)·81^(3/4)]/∛3=3^(-5/3-1/3)·(3⁴)^(3/4)=3^(-5/3-1/3+3·4/4)=
=3^(-2+3)=3¹=3;