Question

A= x⁴ + 6x³ + 11x² + 6x + 1

B= x⁴ + x³ - 4x² + x + 1

C= x⁴ - 10x³ + 26x² - 10x + 1

 

Answer 1

đề bảo làm j thế???

767756856858573565646769858972765745756756788768768967

Answer 2

a/\(x^4+6x^3+11x^2+6x+1.\)

\(=x^4+6x^3+9x^2+2x^2+6x+1.\)

\(=\left(x^4+2x^2+1\right)+\left(6x^3+6x\right)+9x^2\)

\(=\left(x^2+1\right)^2+6x\left(x^2+1\right)+\left(3x\right)^2\)

\(=\left(x^2+1+3x\right)^2\)