(x^2+1)-7(x^2+1)+10 (x^2+5x)(x^2+5x-2)-24 (a+1)^2+2(a+1)-8
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(x^2+1)-7(x^2+1)+10 (x^2+5x)(x^2+5x-2)-24 (a+1)^2+2(a+1)-8
(x^2+1)-7(x^2+1)+10
=(x²+1-2)(x²+1-5)
=(x²-1)(x²-4)
=(x-1)(x+1)(x-2)(x+2)
(x^2+5x)(x^2+5x-2)-24
=(x²+5x)²-2(x²+5x)-24
=(x²+5x-6)(x²+5x+4)
=(x+6)(x-1)(x+1)(x+4)
(a+1)^2+2(a+1)-8
=(a+1+4)(a+1-2)
=(a+5)(a-1)
再问: SORRY第一题打错了,是(x^2+1)^2-7(x^2+-7)+10,帮忙解答一下,多谢啦
再答: (x^2+1)²-7(x^2+1)+10 =(x²+1-2)(x²+1-5) =(x²-1)(x²-4) =(x-1)(x+1)(x-2)(x+2)
=(x²+1-2)(x²+1-5)
=(x²-1)(x²-4)
=(x-1)(x+1)(x-2)(x+2)
(x^2+5x)(x^2+5x-2)-24
=(x²+5x)²-2(x²+5x)-24
=(x²+5x-6)(x²+5x+4)
=(x+6)(x-1)(x+1)(x+4)
(a+1)^2+2(a+1)-8
=(a+1+4)(a+1-2)
=(a+5)(a-1)
再问: SORRY第一题打错了,是(x^2+1)^2-7(x^2+-7)+10,帮忙解答一下,多谢啦
再答: (x^2+1)²-7(x^2+1)+10 =(x²+1-2)(x²+1-5) =(x²-1)(x²-4) =(x-1)(x+1)(x-2)(x+2)
|X-1|+|X-2|+|X-3|+|X-4|+|X-5|+|X-6|+|X-7|+|X-8|+|X-9|+|X-10|
x^2-6x+5= A(x-2)(x-3)B(x-6)(x+1)
(x^2+1)-7(x^2+1)+10 (x^2+5x)(x^2+5x-2)-24 (a+1)^2+2(a+1)-8
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