各位数学高手,帮我解下这几道题,谢谢~这几题只要最后答案:(1) -(a^5)^4÷(a^2)^3 (2) 分解因式:x^2-8x+16=___. (3)已知1-a^n=(1-a)(1+a)(1+a^2)(1+a^4),那么n的值是___.这几题要答案和全过程:(4)(x-1/4)(x+1
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![各位数学高手,帮我解下这几道题,谢谢~这几题只要最后答案:(1) -(a^5)^4÷(a^2)^3 (2) 分解因式:x^2-8x+16=___. (3)已知1-a^n=(1-a)(1+a)(1+a^2)(1+a^4),那么n的值是___.这几题要答案和全过程:(4)(x-1/4)(x+1](/uploads/image/z/15031298-2-8.jpg?t=%E5%90%84%E4%BD%8D%E6%95%B0%E5%AD%A6%E9%AB%98%E6%89%8B%2C%E5%B8%AE%E6%88%91%E8%A7%A3%E4%B8%8B%E8%BF%99%E5%87%A0%E9%81%93%E9%A2%98%2C%E8%B0%A2%E8%B0%A2%7E%E8%BF%99%E5%87%A0%E9%A2%98%E5%8F%AA%E8%A6%81%E6%9C%80%E5%90%8E%E7%AD%94%E6%A1%88%EF%BC%9A%281%29+-%28a%5E5%29%5E4%C3%B7%28a%5E2%29%5E3+%282%29+%E5%88%86%E8%A7%A3%E5%9B%A0%E5%BC%8F%EF%BC%9Ax%5E2-8x%2B16%3D___.+%283%29%E5%B7%B2%E7%9F%A51-a%5En%3D%281-a%29%281%2Ba%29%281%2Ba%5E2%29%281%2Ba%5E4%29%2C%E9%82%A3%E4%B9%88n%E7%9A%84%E5%80%BC%E6%98%AF___.%E8%BF%99%E5%87%A0%E9%A2%98%E8%A6%81%E7%AD%94%E6%A1%88%E5%92%8C%E5%85%A8%E8%BF%87%E7%A8%8B%EF%BC%9A%EF%BC%884%EF%BC%89%EF%BC%88x-1%2F4%29%28x%2B1)
各位数学高手,帮我解下这几道题,谢谢~这几题只要最后答案:(1) -(a^5)^4÷(a^2)^3 (2) 分解因式:x^2-8x+16=___. (3)已知1-a^n=(1-a)(1+a)(1+a^2)(1+a^4),那么n的值是___.这几题要答案和全过程:(4)(x-1/4)(x+1
各位数学高手,帮我解下这几道题,谢谢~
这几题只要最后答案:(1) -(a^5)^4÷(a^2)^3 (2) 分解因式:x^2-8x+16=___. (3)已知1-a^n=(1-a)(1+a)(1+a^2)(1+a^4),那么n的值是___.
这几题要答案和全过程:(4)(x-1/4)(x+1/4)(x^2+1/16)
(5)解方程或不等式:2(x-3)(x+5)=x^2+(x+2)×(x-2)+x+7
要最后答案:(x+2)(x-3)=
(x-2)(x+3)=
大家帮我算下可以吗?谢谢
各位数学高手,帮我解下这几道题,谢谢~这几题只要最后答案:(1) -(a^5)^4÷(a^2)^3 (2) 分解因式:x^2-8x+16=___. (3)已知1-a^n=(1-a)(1+a)(1+a^2)(1+a^4),那么n的值是___.这几题要答案和全过程:(4)(x-1/4)(x+1
(1) -(a^5)^4÷(a^2)^3=-a^14
(2) 分解因式:x^2-8x+16=_ (x-4)^2
(3)n=8
(4)(x-1/4)(x+1/4)(x^2+1/16)
=(x^2-1/16)(x^2+1/16)
=x^4-1/256
(5 ) 2(x-3)(x+5)=x^2+(x+2)×(x-2)+x+7
2x^2+4x-30=x^2+x^2-4+x+7
3x=33
x=11
:(x+2)(x-3)=x^2-6
(x-2)(x+3)=x^2-6
果断都太简单了~身为大学生做这些题目会被鄙视的,所以对不住
(1) -(a^5)^4÷(a^2)^3=-a^14
(2) 分解因式:x^2-8x+16=_ (x-4)^2
(3)n=8
(4)(x-1/4)(x+1/4)(x^2+1/16)
=(x^2-1/16)(x^2+1/16)
=x^4-1/256
(5 ) 2(x-3)(x+5)=x^2+(x+2)...
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(1) -(a^5)^4÷(a^2)^3=-a^14
(2) 分解因式:x^2-8x+16=_ (x-4)^2
(3)n=8
(4)(x-1/4)(x+1/4)(x^2+1/16)
=(x^2-1/16)(x^2+1/16)
=x^4-1/256
(5 ) 2(x-3)(x+5)=x^2+(x+2)×(x-2)+x+7
2x^2+4x-30=x^2+x^2-4+x+7
3x=33
x=11
:(x+2)(x-3)=x^2-6
(x-2)(x+3)=x^2-6这些都不会,你做的题目符不符合你的年级?
收起
我自己都 不会 呵呵
(1) -a^14
(2) (x-4)^2
(3) 8
(4) 用平方差公式
(x-1/4)(x+1/4)(x^2+1/16)
=(x^2-1/16)(x^2+1/16)
=x^4-1/256
(5) 2(x^2+2x-15)=x^2+(x^2-4)+x+7
2x^2+4x-30-x^2-x^2+4-x-7=0
4x-30+4-x-7=0
3x=33
x=11
(6) (x+2)(x-3)=x^2-x-6
(x-2)(x+3)=x^2+x-6