Question:
factor x³+12x²+41x+42
Answer:
( x+2 ) ( x+3 ) ( x+7 )
Answer:
x³+12x²+41x+42
=x³+2x²+10x²+20x+21+42
=x²(x+2)+10x(x+2)+21(x+2)
=(x+2)(x²+10x+21)
=(x+2)(x²+7x+3x+21)
=(x+2)(x(x+7)+3(x+7))
=(x+2)(x+7)(x+3)
