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2.[4¹/₃×(0,5)⁻¹/₃]⁻²=(4⅓×2-⅓)⁻²=(8⅓)⁻²=(³/₂₅)²=⁹/₆₂₅
oblicz:
1. √90-√1000-√160=3√10-10√10-4√10=-11√10
2.∛(-8)²=4
rozwiaz rownanie
1.(x+5)² -(x-3)²=x+1
x²+10x+25-x²+6x-9=x+1
16x+16=x+1
15x=-15
x=-1
2.(√2-3)²=2-6√2+9=11-6√2