( 4x-1)3+(4x-3)(16x2+3)
=64x3-48x2+12x-1+64x3+12x-48x2-9
=128x3-96x2+24x-10
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( 4x-1)3+(4x-3)(16x2+3)
=64x3-48x2+12x-1+64x3+12x-48x2-9
=128x3-96x2+24x-10
rut gon (4x^4-20x^3+13x^2+30x+9)/(4x^2-1)^2
Rut gon A=3x^3-7x^2+5x-1 / 2x^3-x^2-4x+3
4x^4-20x^3+13x^2+30X+9chia cho
(4x^2-1)^2
rut gon ho tui
rut gon bieu thuc (6x+7)(2x-3)-(4x+1)(3x-7/4)
(4x-3)(3x+2)-(6x+1)(2x-5)+1
rut gon bieu thuc
rut gon cac bieu thuc
2x(2x+1)2 - 3x(x+3)(x-3) - 4x (x+1) 2
A=(2x-3)2-(x-3)3+(4x+1)(16x2-4x+1) voi x=-2 rut gon va tinh gia tri
lam kieu dang toan 8 ho minh nha
rut gon bieu thuc a,(3x+2)^2+4x-3^2+2(5x-2)(5x+2)-75x^2
b,(x-2)^3+(2x+1)^3++2(x+2)(1-x)-9x^3+2x
Rut gon bieu thuc sau: 2x*(2x-1)2-3x*(x+3)2-4x*(x+1)2