(x05+3x+2)(x05+3x+4)-48
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(x05+3x+2)(x05+3x+4)-48(x05+3x+2)(x05+3x+4)-48(x05+3x+2)(x05+3x+4)-48(x^2+3x+2)(x^2+3x+4)-48=(x^2+3x
(x05+3x+2)(x05+3x+4)-48
(x05+3x+2)(x05+3x+4)-48
(x05+3x+2)(x05+3x+4)-48
(x^2+3x+2)(x^2+3x+4)-48
=(x^2+3x+2)[(x^2+3x+2)+2]-48
=(x^2+3x+2)^2+2(x^2+3x+2)-48
=(x^2+3x+2+8)(x^2+3x+2-6)
=(x^2+3x+10)(x^2+3x-4)
=(x^2+3x+10)(x+4)(x-1)
(x²+3x+2)(x²+3x+4)-48
=(x²+3x)²+6(x²+3x)+8-48
=(x²+3x)²+6(x²+3x)-40
=(x²+3x-4)(x²+3x+10)
=（x-1）（x+4）(x²+3x+10)