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Plllzzzzz answer my question fastFACTORISE IT: |
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Answer» Answer: 3 Step-by-step EXPLANATION: LET z=a²/bc+b²/ca+c²/ab z=1/abc(a³+b³+c³) We KNOW that GIVEN a+b+c=0 then a³+b³+c³=3abc so z=1/abc*3abc =3 |
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