\(x^3+3x+7x^3+2x^2+5x+1\)
\(=8x^3+2x^2+8x+1\)
tham khảo nhé~
=(x^3+7x^3)+2x^2+(3x+5x)+1
=8x^3+2x^2+8x+1
Hok tot!!!!
7x3 + x3 + 2x2 + 5x + 3x + 1
= (7x3 + x3) + 2x2 + (5x + 3x) + 1
= 8x3 + 2x2 + 8x + 1
= 2x.(4x2 + x + 4) + 1
Chúc em học tốt!!!
\(x^3+3x+7x^3+2x^2+5x+1\)
\(=8x^3+2x^2+8x+1=8x\left(x^2+1\right)+x^2+1+x^2\)
\(=\left(8x+1\right)\left(x^2+1\right)+x^2\)
Vẫn gọn hơn shinichi haha xd xd