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shtirl [24]
3 years ago
14

The product of two consecutive integers is 420

Mathematics
1 answer:
Olenka [21]3 years ago
6 0
(a) * (a+1) = 420
a^2 + a = 420
a^2 + a - 420 = 0
(a+21)(a-20) = 0
a = -21 OR 20

The two integers can be -21 and -20, OR 20 and 21.
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