А)125a³-8b³ = (5а)³ - (2b)³ = (5а-2b)((5а)²+5a·2b+(2b)²) =
= (5а-2b)(25а²+10ab+4b²)
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б) a</span>³+27b³ = (а)³ + (3b)³ = (а+3b)(а²-a·3b+(3b)²) =
= (а+3b)(а²-3ab+9b²)
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в) x</span>⁶-a⁶ = (x²)³ - (a²)³ = (x²-a²)((x²)²+x²·a²+(a²)²) =
= (x-a)(x+a)(x⁴+a²x²+a⁴)
<span>(-3)4= -12 ; 10-(-1)4= 14 (-2)5=-10 ; 9-(-1)5= 14 .
0,043∙1003 =43. 129 ; 0,52∙2002=1041.04; 0,054∙1004= 54,216; 12,53∙83=1039,99</span>
√5(√5-1)/√10(1-√5)=-√5/√10=-√5/√5*√2=-1/√2=-√2/2