Tính nhẩm: a, 138^2-38^2 b, (10^2+8^2+6^2+4^2+2^2)- (9^2+7^2+5^2+3^2+1^2) PLZZZ, giúp vs

asked Nov 4, 2022 42.2k views

1 vote

Tính nhẩm:
a, 138^2-38^2 b, (10^2+8^2+6^2+4^2+2^2)- (9^2+7^2+5^2+3^2+1^2)
PLZZZ, giúp vs

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2 votes

Answer:

is there a question?

Explanation:

Adriendenat answered Nov 10, 2022

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