(x^+4x)^+7(x^+4x)+12
1个回答
(x^2+4x)^2+7(x^2+4x)+12
=(x^2+4x+3)(x^2+4x+4)
=(x+3)(x+1)(x+2)^2
相关问题
(4/7x-12)+3/2(4/7X-12)=X 解出来
(x^2-4x)^2+7(x^2-4x)+12因式分解
4x=3x+7; 12-x=3x; 3x-7=x+1.
12-3(9-x)=5(x-4)-7(7-x)
5x+35=12x-42 8x-4=-3x-21 4-4x=3x-3 12x+7=14-4x 288x+144=15x
4x+7x=150-7 19x-5(3x-4)=24 2(4x-3)+(15-2x)=24+12
x²+1/x²-3(x+1/x)+4=0 3x²-12x-2√(x²-4x+7)
7x^2+12x+4=0求x
4x^2-1=12xX(X-7=8(7-X)
12.5-2x=4x+7.