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

Sgrgmngt asked Dec 20, 2022

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5 votes

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

Sgrgmngt asked Dec 20, 2022

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6 votes

Answer:

is there a question?

Explanation:

Igorrious answered Dec 24, 2022

2.9k points

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