x²-x-56=(x-8)(x+7)x²-10x+16=(x-2)(x-8)6y²+19y+15=(2y+3)(3y+5)14x²+3x-27=(2x+3)(7x-9)m²+5n-mn-5m=m²-mn+5n-5m=m(m-n)-5(m-n)=(m-5)(m-n)m²-n²+2m-2n=(m+n)(m-n)+2(m-n...
化简过程x^2-x-56.X^2-10x+16.6y^2+19y+15.14x^2+3x-27 M^2+5n-mn-5m
1个回答
相关问题
-
因式分解,-4x^3+16x^2-26x mn(m-n)-m(n-m) 5(x-y)^3+10(y-x)^2 18b(a
-
因式分解 2x^2+5x+32m^2-m-310y^2-y-37-19x-6x^224m^2+m-8-3x^2+5x+2
-
计算,题目在下,快﹙1﹚(2x²y+3x²y)-(6x²y-3x²﹚ ﹙2﹚﹙5mn-2m+3n﹚+﹙-7m-7mn﹚
-
解二元一次方程组{5x-6y=15,{2/3x-y=0,{2m+3n=32,{2x+3y-1=x+6,{3x+5y=19
-
化简:(1)-5(x^2-3)-2(3x^2+5) (2)2m-3n+[6m-(3m-n)]
-
化简:(1)5y/2x²·6x²/15y³;(2)4x²/y²÷2x&
-
数学因式分解与化简求值m^3-2m^2-15mM^4-17m^2+16x^2y^2-15xy+50(X+y)^2-14(
-
化简:(1)-5m2-7mn-2+5mn+9m2(2)-3(2x2-xy)+(x2+xy-6)
-
先化简再求值x-{y-2x+[3x-2(2x+y)+5y]},其中x=-1,y=2二分之一(m-n)+四分之一(m+n)
-
x3y3(x-y)3+x2y2(y-x)2; 5x(2m-n+p)³-25x²(n-2m-p)