3x²-11x+6 还有3x²-7x²-6
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3x²-11x+6 还有3x²-7x²-6
3x²-11x+6 还有3x²-7x²-6
3x²-11x+6 还有3x²-7x²-6
3x²-11x+6 =(3x-2)(x-3) 3x²-7x²-6 =(3x+2)(x-3)
3x²-11x+6
=(3x-2)(x-3)
3x²-7x-6
=(3x+2)(x-3)
要因式分解么?
十字相乘法
1x -3
3x -2
即3x²-11x+6
=(x-3)(3x-2)
还有3x²-7x²-6
1x -3
3x 2
即3x²-7x²-6
=(x-3)(3x+2)
3x²-11x+6 还有3x²-7x²-6
因式分解:(x²-2x)²-3x²+6x
(x²+5x+6)(x²+7x+6)-3x²
有关因式分解的题!2、6x²-7xy+2y²; x²+144y²-25xy; 6x²-13x+6; 2x²-56x²-7xy+2y²; x²+144y²-25xy; 6x²-13x+6; 2x²-5x+3; 2x²+7x+3 -x²-x-56 12x²-11那-x²-x+56
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x²-9/x²+2x-3乘3x²-x-2/x²-5x+6,
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求几道因式分解1.(ax+by)²+(bx-ay)²2.(x²-x)²-4(x²-x-1)3.4(x+y)²-9(x-y)²4.(a+b)(a-b)+4(b-1)5.x²+4xy+4y²-2x-4y-36.(x+1)(x+2)(x+3)(x+4)+17,3x²-11x+10
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3x²-7xy-20y²求证x=4y或3x=-5y 还有一道题49(x-3)²=16(x+6)²
xy²/(x²y-y) × x²/(x²+x)=(x²-3x)/(x²-5x) × 2x-10/(x²-6x+9)=化简求植x²-1/(x²-x-2)除以x/2x-4,其中x=1/2[x-x/(x+1)]除以[x/(2x-4)] ,其中x=√2+1
x²+3x分之x平方+9x+x²+6x+9分之x²-9
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(x²-3x)²-2x²+6x-8