49³-30³+____ = 3×49×30×19
explain why c³=-19 in solution
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Answer:
19^3
Step-by-step explanation:
RHS=3*49*30*19=83790 now,LHS=49^3-30^3=90649 now,90649-83790=6859 as we know that 19^3=6859. hence we can say that 19^3 is the answer
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