If x is equal to 3 + 2 under root 2 find x cube minus one upon x cube
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given x=√5
cubing on both sides
x^3=5(√5)=approximately 10
so x^3-1÷x^3=x^6-1÷x^3
=25(5)-1÷5√5
=124÷5√5
approximately =6.2
I hope it will help you
cubing on both sides
x^3=5(√5)=approximately 10
so x^3-1÷x^3=x^6-1÷x^3
=25(5)-1÷5√5
=124÷5√5
approximately =6.2
I hope it will help you
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