Question

find the product of -21 and -30​

Answer 1

Answer:

-21x-30 (- - =+)

21x30

630

( - - +)

+630

so , relevant answer is 630

Answer 2

Answer:

630

Step-by-step explanation:

because

first let us cut that negative signs

and now 21 into 30 so it is

630

and bow about signs

-*-=+

therefore -21×-30

=630

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