Hãy nhập câu hỏi của bạn vào đây, nếu là tài khoản VIP, bạn sẽ được ưu tiên trả lời.
\(3x^2-14x-5=3x\left(x-5\right)+\left(x-5\right)=\left(x-5\right)\left(3x+1\right)\)
\(2x^2+x-6\)
\(=2x^2-3x+4x-6\)
\(=x\left(2x-3\right)+2\left(2x-3\right)\)
\(=\left(2x-3\right)\left(x+2\right)\)
\(6x^2-13x+6\)
\(=6x^2-9x-4x+6\)
\(=\left(2x-3\right)\left(3x-2\right)\)
\(x^5-x^4-30x^3=x^3\left(x^2-x-30\right)=x^3\left(x-6\right)\left(x+5\right)\)
4x2 - 8x + 3
= 4x2 - 6x - 2x + 3
= ( 4x2 - 6x ) - ( 2x - 3 )
= 2x( 2x - 3 ) - ( 2x - 3 )
= ( 2x - 3 )( 2x - 1 )
\(x^2-2x-24\\ =x^2-2x+1-25\\ =\left(x-1\right)^2-5^2\\ =\left(x-1-5\right)\left(x-1+5\right)\\ =\left(x-6\right)\left(x+4\right)\)
\(9x^4+36x^3+29x^2-14x\)
\(=x\left(9x^3+36x^2+29x-14\right)\)
\(=x\left(9x^3+18x^2+18x^2+36x-7x-14\right)\)
\(=x\left[9x^2\left(x+2\right)+18x\left(x+2\right)-7\left(x+2\right)\right]\)
\(=x\left(x+2\right)\left(9x^2+18x-7\right)\)
\(=x\left(x+2\right)\left(9x^2-3x+21x-7\right)\)
\(=x\left(x+2\right)\left[3x\left(3x-1\right)+7\left(3x-1\right)\right]\)
\(=x\left(x+2\right)\left(3x+7\right)\left(3x-1\right)\)