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计算(c2)n•(cn+1)2等于
下列计算正确的是
下列运算正确的是 ( )
2 x 2 + 3 x 2 = 5 x 2
x 2 ⋅ x 4 = x 8
x 6 ÷ x 2 = x 3
( x y 2 ) 2 = x y 4
下列计算正确的是 ( )
3 mn − 2 mn = 1
( m 2 n 3 ) 2 = m 4 n 6
( − m ) 3 ⋅ m = m 4
( m + n ) 2 = m 2 + n 2
下列运算中,计算结果正确的是
的运算结果正确的是( )
下列运算结果正确的是 ( )
3 a - a = 2
a 2 ⋅ a 4 = a 8
( a + 2 ) ( a - 2 ) = a 2 - 4
( - a ) 2 = - a 2
( x 2 ) 3 = x 5
x 2 + x 2 = x 4
x 2 ⋅ x 3 = x 5
x 6 ÷ x 3 = x 2
3 a + 2 b = 5 ab
( − 2 a ) 2 = − 4 a 2
( a + 1 ) 2 = a 2 + 2 a + 1
a 3 · a 4 = a 12
下列式子正确的是 ( )
a 3 - a 2 = a
( a 2 ) 3 = a 6
a 3 ⋅ a 2 = a 6
( a 2 ) 3 = a 5
下列运算结果为 a 6 的是 ( )
a 2 ⋅ a 3
a 12 ÷ a 2
( a 3 ) 2
( 1 2 a 3 ) 2
a 2 ⋅ a 3 = a 6
a 2 + a 3 = a 5
a 2 ÷ a 3 = a
a 2 + a 2 = a 4
( a 3 ) 2 = a 5
a 3 a 2 = a ( a ≠ 0 )
x 3 + x 3 = x 6
2 x 3 - x 3 = x 3
( x 3 ) 2 = x 5
x 3 ⋅ x 3 = x 9
a 2 + a 2 = 2 a 4
a 2 ⋅ a = a 3
( 3 a ) 2 = 6 a 2
a 6 + a 2 = a 3
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