(3x²)³-7x³[x³-x(4x²+1)]
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(3x²)³-7x³[x³-x(4x²+1)]
(3x²)³-7x³[x³-x(4x²+1)]
(3x²)³-7x³[x³-x(4x²+1)]
(3x²)³-7x³[x³-x(4x²+1)\
=27x^6-7x^6+28x^6+7x^4
=48x^6+7x^4
(3x²)³-7x³[x³-x(4x²+1)]
(3x²)³-7x³[x³-x(4x²+1)]
(3x²)³-7x³[x³-x(4x²+1)]
(3x²)³-7x³[x³-x(4x²+1)\
=27x^6-7x^6+28x^6+7x^4
=48x^6+7x^4