1.
= (<u>ab (a^(¹/₃)+b^(¹/₃))</u> * <u> 1 </u> )³ =
( a^(¹/₃)+b^(¹/₃) a^(¹/₃)b^(¹/₃) )
= ( <u> ab </u>)³ = <u> a³b³ </u>= a²b²
( a^(¹/₃)b^(¹/₃) ) ab
2.
= <u> a^(¹/₃) - b^(¹/₃) </u> * <u> a^(¹/₃)b^(¹/₃)(a^(²/₃) - b^(²/₃)) </u>=
a^(¹/₃)b^(¹/₃) a^(¹/₃) + b^(¹/₃)
= <u> a^(¹/₃) - b^(¹/₃) </u>* <u>(a^(¹/₃)-b^(¹/₃))(a^(¹/₃)+b^(¹/₃))</u> =
1 a^(¹/₃)+b^(¹/₃)
= (a^(¹/₃) - b^(¹/₃))²
4х²-12х+9=0
х²-3х+9/4=0
х1+х2=3
х1*х2=9/4
х1=3/2 х2=3/2