高手come in(1.)x²-5x+6=______(2.)z²+6z-7=______(3)2x²-7x+3=_____(4)2m²+mn-n²=______(5)-x²+3x-2______(6)x的4次方-x²-12________
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![高手come in(1.)x²-5x+6=______(2.)z²+6z-7=______(3)2x²-7x+3=_____(4)2m²+mn-n²=______(5)-x²+3x-2______(6)x的4次方-x²-12________](/uploads/image/z/10353389-5-9.jpg?t=%E9%AB%98%E6%89%8Bcome+in%281.%29x%26sup2%3B-5x%2B6%3D______%282.%29z%26sup2%3B%2B6z-7%3D______%283%292x%26sup2%3B-7x%2B3%3D_____%284%292m%26sup2%3B%2Bmn-n%26sup2%3B%3D______%285%29-x%26sup2%3B%2B3x-2______%286%29x%E7%9A%844%E6%AC%A1%E6%96%B9-x%26sup2%3B-12________)
高手come in(1.)x²-5x+6=______(2.)z²+6z-7=______(3)2x²-7x+3=_____(4)2m²+mn-n²=______(5)-x²+3x-2______(6)x的4次方-x²-12________
高手come in
(1.)x²-5x+6=______
(2.)z²+6z-7=______
(3)2x²-7x+3=_____
(4)2m²+mn-n²=______
(5)-x²+3x-2______
(6)x的4次方-x²-12________
高手come in(1.)x²-5x+6=______(2.)z²+6z-7=______(3)2x²-7x+3=_____(4)2m²+mn-n²=______(5)-x²+3x-2______(6)x的4次方-x²-12________
1.(x-3)(x-2)
2.(x-1)(x+7)
3.(x-3)(2x-1)
4.(m+n)(2m-n)
5.(x-2)(-x+1)
6.(x²-4)(x²+3)=(x+2)(x-2)(x²+3)
(1)x²-5x+6=(x-2)(x-3)
十字相乘法:
1 -2
X
1 -3
(2.)z²+6z-7=(z-1)(z+7)
十字相乘法:
1 -1
X
1 7
(3)2x²-7x+3=(2x-1)(x-3)
十字相乘法:
2 -1
X
1 -3<...
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(1)x²-5x+6=(x-2)(x-3)
十字相乘法:
1 -2
X
1 -3
(2.)z²+6z-7=(z-1)(z+7)
十字相乘法:
1 -1
X
1 7
(3)2x²-7x+3=(2x-1)(x-3)
十字相乘法:
2 -1
X
1 -3
(4)2m²+mn-n²=(2m-n)(m+n)
十字相乘法:
2 -1
X
1 1
(5)-x²+3x-2=(-x-2)(x+1)
十字相乘法:
-1 -2
X
1 1
(6)x的4次方-x²-12=(x+2)(x-2)(x²+3)
十字相乘法:
1x² -4
X
1x² 3
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