find the value of 34²-21²
plz give full answer otherwise it will be reported and blocked
Answers
Answered by
33
Answer:
715
Step-by-step explanation:
We know
a²-b²=(a+b)(a-b)
so,
34²-21²
=(34+21)(34-21)
=55×13
=715
Answered by
3
it's wrong question because 34 and 21 have not any square of this number
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