Step-by-step explanation:
Step by Step Solution
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STEP
1
:
Equation at the end of step 1
(((7 • (x3)) + 2x2) - 21x) - 6
STEP
2
:
Equation at the end of step
2
:
((7x3 + 2x2) - 21x) - 6
STEP
3
:
Checking for a perfect cube
3.1 7x3+2x2-21x-6 is not a perfect
