Question

PHAN TICH DA THUC THANH NHAN TU

\(\left(x^2+6x\right).\left(x^2+14x+40\right)+128\)\

giup minh di!

Answer 1

\(\left(x^2+6x\right)\left(x^2+14x+40\right)+128\)

\(=\left(x^2+6x\right)\left(x^2+14x+40\right)\)

\(=x^4+20x^3+124x^2+240x\)

\(=x^4+20x^3+124x^2+240x+128\)

Answer 2

\(\left(x^2+6x\right)\left(x^2+14x+40\right)+128\)

\(=x^4+14x^3+40x^2+6x^3+84x^2+240x+128\)

\(=x^4+20x^3+124x^2+240x+128\)

mk chỉ biết đến đây thôi