(13-x)+6=(2x)
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(13-x)+6=(2x)(13-x)+6=(2x)(13-x)+6=(2x)169-26x+x+36=4x3x+26x-205=0(x-5)(3x+41)=0x=5或x=-3/415
(13-x)+6=(2x)
(13-x)+6=(2x)
(13-x)+6=(2x)
169-26x+x+36=4x
3x+26x-205=0
(x-5)(3x+41)=0
x=5或x=-3/41
5
(13-x)+6=(2x)
6x-2x+3x-3x-x=1.2×3
多项式x^4+2x^3-4x^2-2x+3与x^3+4x^2+x-6的最大公因式是什么x^4+2x^3-4x^2-2x+3=(x^4+3x^3)-x(x^2+4x+3)+(x+3)=x^3(x+3)-x(x+1)(x+3)+(x+3)=(x+3)[x^3-x(x+1)+1]=(x+3)[x^3+1-x(x+1)]=(x+3)[(x+1)(
4x x-2 x -- - -- = -- +1 3 2 64x x-2 x-- - -- = -- +13 2 6
方程:13X+3=14X+2.4x+3=3x+8 5(x+2)=方程:13X+3=14X+2.4x+3=3x+85(x+2)=2(2x+7)6(2x-7)=5(x+7)
x+2(2x-6)=13
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(x-1)(x+2)(x+3)(x+6)-13
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(X-2)(X-3)+2(X+6)(X-5)-3(X^2+7X+13)
计算(x-2)(x-3)+2(x+6)(x-5)-3(x平方-7x+13)
(3x-2)(x-3)-2(x+6)(x-5)+3x(-7x+13)