几道初三填空题,不用过程1.若(x-4)(x^2+16)p=x^4-256,则代数式p=()2.(1)已知(a-b)^2=7,(a+b)^2=13,则a^2+b^2=();ab=() (2)已知x+1/x=3,则x^2+1/x^2=(),(x-1/x)^2=()3.已知a(a-1)+(b-a^2)=-1.则a^2+b^2/2-ab=()4.已
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![几道初三填空题,不用过程1.若(x-4)(x^2+16)p=x^4-256,则代数式p=()2.(1)已知(a-b)^2=7,(a+b)^2=13,则a^2+b^2=();ab=() (2)已知x+1/x=3,则x^2+1/x^2=(),(x-1/x)^2=()3.已知a(a-1)+(b-a^2)=-1.则a^2+b^2/2-ab=()4.已](/uploads/image/z/6461799-15-9.jpg?t=%E5%87%A0%E9%81%93%E5%88%9D%E4%B8%89%E5%A1%AB%E7%A9%BA%E9%A2%98%2C%E4%B8%8D%E7%94%A8%E8%BF%87%E7%A8%8B1.%E8%8B%A5%28x-4%29%28x%EF%BC%BE2%2B16%29p%3Dx%EF%BC%BE4-256%2C%E5%88%99%E4%BB%A3%E6%95%B0%E5%BC%8Fp%3D%28%292.%281%29%E5%B7%B2%E7%9F%A5%28a-b%29%EF%BC%BE2%3D7%2C%28a%2Bb%29%EF%BC%BE2%3D13%2C%E5%88%99a%EF%BC%BE2%2Bb%EF%BC%BE2%3D%28%29%3Bab%3D%28%29++%282%29%E5%B7%B2%E7%9F%A5x%2B1%2Fx%3D3%2C%E5%88%99x%EF%BC%BE2%2B1%2Fx%EF%BC%BE2%3D%28%29%2C%28x-1%2Fx%29%EF%BC%BE2%3D%28%293.%E5%B7%B2%E7%9F%A5a%28a-1%29%2B%28b-a%EF%BC%BE2%29%3D-1.%E5%88%99a%EF%BC%BE2%2Bb%EF%BC%BE2%2F2-ab%3D%28%294.%E5%B7%B2)
几道初三填空题,不用过程1.若(x-4)(x^2+16)p=x^4-256,则代数式p=()2.(1)已知(a-b)^2=7,(a+b)^2=13,则a^2+b^2=();ab=() (2)已知x+1/x=3,则x^2+1/x^2=(),(x-1/x)^2=()3.已知a(a-1)+(b-a^2)=-1.则a^2+b^2/2-ab=()4.已
几道初三填空题,不用过程
1.若(x-4)(x^2+16)p=x^4-256,则代数式p=()
2.(1)已知(a-b)^2=7,(a+b)^2=13,则a^2+b^2=();ab=()
(2)已知x+1/x=3,则x^2+1/x^2=(),(x-1/x)^2=()
3.已知a(a-1)+(b-a^2)=-1.则a^2+b^2/2-ab=()
4.已知a^2+b^2+4a-6b+13=0,则a=(),b=()
5.已知x^2-4x+1=0,则x^2/x^4+x^2+1=()
几道初三填空题,不用过程1.若(x-4)(x^2+16)p=x^4-256,则代数式p=()2.(1)已知(a-b)^2=7,(a+b)^2=13,则a^2+b^2=();ab=() (2)已知x+1/x=3,则x^2+1/x^2=(),(x-1/x)^2=()3.已知a(a-1)+(b-a^2)=-1.则a^2+b^2/2-ab=()4.已
1.x+4
2.(1)10 3/2(2)7 11
3.你要求的是不是(a^2+b^2)/2-ab,如果是,则答案为1/2,如果不是,则答案为(a^2+1)/2
4.-2 3
5.你要求的是x^2/(x^4+x^2+1)吗?
1/15
1.p=x
2.a^2+b^2=10 ab=3/2
4.a=-2 b=3
5.