factorise 8 x^3 -64 y^3 +27 z^3+72xyz
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Answer: 8x3 - 72xyz + 27y3 + 64z3
Step-by-step explanation:Step 1 :
Equation at the end of step 1 :
(((8•(x3))+(27•(y3)))+26z3)-72xyz
Step 2 :
Equation at the end of step 2 :
(((8 • (x3)) + 33y3) + 26z3) - 72xyz
Step 3 :
Equation at the end of step 3 :
((23x3 + 33y3) + 26z3) - 72xyz
Step 4 :
Checking for a perfect cube :
4.1 8x3-72xyz+27y3+64z3 is not a perfect cube
Final result :
8x3 - 72xyz + 27y3 + 64z3
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