(-b)的8次方÷(-b)=,(ab)的4次方÷(ab)²=,若2的x次方=32分之1,则x²=若x的2m次方÷x²=x的6次方,则m=,计算32的m次方÷8的m次方×4结果为,已知x+y=10,xy=4,则x²+y²,用提公因式法5a(x-y)-10b(
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![(-b)的8次方÷(-b)=,(ab)的4次方÷(ab)²=,若2的x次方=32分之1,则x²=若x的2m次方÷x²=x的6次方,则m=,计算32的m次方÷8的m次方×4结果为,已知x+y=10,xy=4,则x²+y²,用提公因式法5a(x-y)-10b(](/uploads/image/z/1637471-47-1.jpg?t=%28-b%29%E7%9A%848%E6%AC%A1%E6%96%B9%C3%B7%28-b%29%EF%BC%9D%2C%28ab%29%E7%9A%844%E6%AC%A1%E6%96%B9%C3%B7%28ab%29%26%23178%3B%EF%BC%9D%2C%E8%8B%A52%E7%9A%84x%E6%AC%A1%E6%96%B9%3D32%E5%88%86%E4%B9%8B1%2C%E5%88%99x%26%23178%3B%EF%BC%9D%E8%8B%A5x%E7%9A%842m%E6%AC%A1%E6%96%B9%C3%B7x%26%23178%3B%EF%BC%9Dx%E7%9A%846%E6%AC%A1%E6%96%B9%2C%E5%88%99m%EF%BC%9D%2C%E8%AE%A1%E7%AE%9732%E7%9A%84m%E6%AC%A1%E6%96%B9%C3%B78%E7%9A%84m%E6%AC%A1%E6%96%B9%C3%974%E7%BB%93%E6%9E%9C%E4%B8%BA%2C%E5%B7%B2%E7%9F%A5x%2By%3D10%2Cxy%3D4%2C%E5%88%99x%26%23178%3B%2By%26%23178%3B%2C%E7%94%A8%E6%8F%90%E5%85%AC%E5%9B%A0%E5%BC%8F%E6%B3%955a%28x-y%29-10b%28)
(-b)的8次方÷(-b)=,(ab)的4次方÷(ab)²=,若2的x次方=32分之1,则x²=若x的2m次方÷x²=x的6次方,则m=,计算32的m次方÷8的m次方×4结果为,已知x+y=10,xy=4,则x²+y²,用提公因式法5a(x-y)-10b(
(-b)的8次方÷(-b)=,(ab)的4次方÷(ab)²=,若2的x次方=32分之1,则x²=
若x的2m次方÷x²=x的6次方,则m=,计算32的m次方÷8的m次方×4结果为,已知x+y=10,xy=4,则x²+y²,用提公因式法5a(x-y)-10b(y-x),提出公因式是,计算(-2x-1)²=
(-b)的8次方÷(-b)=,(ab)的4次方÷(ab)²=,若2的x次方=32分之1,则x²=若x的2m次方÷x²=x的6次方,则m=,计算32的m次方÷8的m次方×4结果为,已知x+y=10,xy=4,则x²+y²,用提公因式法5a(x-y)-10b(
(-b)的8次方÷(-b)=(-b)的7次方=-b的7次方
(ab)的4次方÷(ab)²=a²b²
若2的x次方=32分之1,
2^x=2^(-5)
x=-5
则x²=25
若x的2m次方÷x²=x的6次方,
x^(2m-2)=x^6
2m-2=6
则m=4,
计算32的m次方÷8的m次方×4结果为
=8^m×4^m÷8^m×4
=4^(m-1)
已知x+y=10,xy=4,则x²+y²=(x+y)²-2xy=10²-8=92,
用提公因式法5a(x-y)-10b(y-x),提出公因式是,5(x-y)
5a(x-y)-10b(y-x)
=5a(x-y)+10b(x-y)
=5(x-y)(a+2b)
计算(-2x-1)²=4x²+4x+1