计算:(1)x·x3+x2·x2; (2)(-pq)3; (3)-(-2a2b)4; (4)a3·a4·a+(a2)4+(-2a4)2.(1)2x4;(2)-p3q3;(3)-16a8b4;(4)6a8.
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![计算:(1)x·x3+x2·x2; (2)(-pq)3; (3)-(-2a2b)4; (4)a3·a4·a+(a2)4+(-2a4)2.(1)2x4;(2)-p3q3;(3)-16a8b4;(4)6a8.](/uploads/image/z/12981697-25-7.jpg?t=%E8%AE%A1%E7%AE%97%EF%BC%9A%281%29x%C2%B7x3%2Bx2%C2%B7x2%EF%BC%9B+%282%29%28-pq%293%EF%BC%9B+%283%29-%28-2a2b%294%EF%BC%9B+%284%29a3%C2%B7a4%C2%B7a%2B%28a2%294%2B%28-2a4%292%EF%BC%8E%281%292x4%EF%BC%9B%282%29-p3q3%EF%BC%9B%283%29-16a8b4%EF%BC%9B%284%296a8%EF%BC%8E)
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计算:(1)x·x3+x2·x2; (2)(-pq)3; (3)-(-2a2b)4; (4)a3·a4·a+(a2)4+(-2a4)2.(1)2x4;(2)-p3q3;(3)-16a8b4;(4)6a8.
计算:(1)x·x3+x2·x2; (2)(-pq)3; (3)-(-2a2b)4; (4)a3·a4·a+(a2)4+(-2a4)2.
(1)2x4;(2)-p3q3;(3)-16a8b4;(4)6a8.
计算:(1)x·x3+x2·x2; (2)(-pq)3; (3)-(-2a2b)4; (4)a3·a4·a+(a2)4+(-2a4)2.(1)2x4;(2)-p3q3;(3)-16a8b4;(4)6a8.
(1)x*x^3+x^2*x^2=x^4+x^4=2x^4
(2)(-pq)^3=(-1)^3(pq)^3=-p^3q^3
(3)-(2a^2b)^4=-2^4(a^2)^4b^4=-16a^8b^4
(4)a^3*a^4*a+(a^2)^4+(-2a^4)^2=a^8+a^8+(-2)^2(a^4)^2=2a^8+4a^8=6a^8
以上题目是同底数幂的乘方的练习:
a^m*a^n=a^(m+n)
(a^m)^n=a^(mn)
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