几道初二代数题1、已知x+3能整除x^2+kx-18,求k的值 2、当多项式x^2+kx-18=0时,求x的值 3.x^2-y^2=48,x+y=6,则x=______,y=______.4.若a^2-4a+b^2-10b+29=0,则a=______,b=______.还有,什么叫恒等于 、参数方程
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![几道初二代数题1、已知x+3能整除x^2+kx-18,求k的值 2、当多项式x^2+kx-18=0时,求x的值 3.x^2-y^2=48,x+y=6,则x=______,y=______.4.若a^2-4a+b^2-10b+29=0,则a=______,b=______.还有,什么叫恒等于 、参数方程](/uploads/image/z/3888516-12-6.jpg?t=%E5%87%A0%E9%81%93%E5%88%9D%E4%BA%8C%E4%BB%A3%E6%95%B0%E9%A2%981%E3%80%81%E5%B7%B2%E7%9F%A5x%2B3%E8%83%BD%E6%95%B4%E9%99%A4x%5E2%2Bkx-18%2C%E6%B1%82k%E7%9A%84%E5%80%BC+2%E3%80%81%E5%BD%93%E5%A4%9A%E9%A1%B9%E5%BC%8Fx%5E2%2Bkx-18%3D0%E6%97%B6%2C%E6%B1%82x%E7%9A%84%E5%80%BC+3.x%5E2-y%5E2%3D48%2Cx%2By%3D6%2C%E5%88%99x%3D______%2Cy%3D______.4.%E8%8B%A5a%5E2-4a%2Bb%5E2-10b%2B29%3D0%2C%E5%88%99a%3D______%2Cb%3D______.%E8%BF%98%E6%9C%89%EF%BC%8C%E4%BB%80%E4%B9%88%E5%8F%AB%E6%81%92%E7%AD%89%E4%BA%8E+%E3%80%81%E5%8F%82%E6%95%B0%E6%96%B9%E7%A8%8B)
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