3x^2-16x+5
2个回答
原式=3x²-15x-x+5
=3x(x-5)-(x-5)
=(x-5)(3x-1)
相关问题
3x(2x-7)=5x² ,2(x+3)²=3x+16
解方程:(1)16x-40=9x+16 (2)4x=20/3x+16 (3)2(3-x)=-4(x+5)
5x-2=7x+8 3=3/2x+16 1-3/2x=3x+2/5
X-2/5X-1/3X=16
3/(16-x^2)=5/(x-4)
8.|x+3.2x=16.5
因式分解3x^3-5x^2-16x+12
10x-3=9、5x-2=7x+8、x=3/2 +16、1-3/2x=3x+5/2
﹙1/2√x+3/4√4x^3-5/8√16x^5﹚*√x^3=
(1) x+3x=-16 (2) 16y-2.5y-7.5y=5(3) 3x+5=4x+1(4) 9-3y=5y+5 就