56mcubed-42mcubed+70m
56^3 = 175,616
42^3 = 74,088
Now -- do the arithmetic. What do you get?
14 m^3 + 70 m.
To simplify the given expression 56m³ - 42m³ + 70m, we can combine like terms and perform the necessary calculations.
Step 1: Combine the like terms with the same exponent (m³).
56m³ - 42m³ = 14m³
Step 2: Add the remaining term, 70m, to the combined terms.
14m³ + 70m = 14m³ + 70m
Therefore, the simplified form of the expression is 14m³ + 70m.