Toán Lớp 6: giúp mk với mn
câu 1 tính
a, 4.5^2 – 5.2^3 + 6^5 : 6^3
b, (-2015)+ ( 100-(-2015)) – (100)
câu 2 tìm x
a 8^2 – 3.x = 2.(5^2 + 1) b 2.x= -20:10 c 7x^2 -1 = 3^2003 : 3^2000
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Toán Lớp 6: giúp mk với mn
câu 1 tính
a, 4.5^2 – 5.2^3 + 6^5 : 6^3
b, (-2015)+ ( 100-(-2015)) – (100)
câu 2 tìm x
a 8^2 – 3.x = 2.(5^2 + 1) b 2.x= -20:10 c 7x^2 -1 = 3^2003 : 3^2000
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