Question
If $m = 2,$ find the difference between the values of $4m^3$ and $3m^4.$

Answer

$4m^3 = 4 (2)^3 = 4 \times 2 \times 2 \times 2 = 32$
$3m^4 = 3 (2)^4 = 3 \times 2 \times 2 \times 2 \times 2 = 48$
Now, a difference $3m^4 – 4m^3 = 48 – 32 = 16$

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