求反函数 1/y

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`x`²	`x`^□	log_□	√☐	^□√☐	≤	≥	□□	·	÷	`x`^◦	π
(☐)^′	`ddx`	∂∂`x`	∫	∫_□^□	lim	∑	∞	`θ`	(`f` ◦ `g`)	`f`(`x`)

☐²

x^☐

√☐

^□√☐

□□

log_□

θ

∞

∫

ddx

≥	≤	·	÷	`x`^◦	(☐)	\|☐\|	(`f` ◦ `g`)	`f`(`x`)	ln	`e`^☐
(☐)^′	∂∂`x`	∫_□^□	lim	∑	sin	cos	tan	cot	csc	sec

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化简 x²+4x−45x²+x−30

Solution

x+9x+6

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x²+4x−45x²+x−30

因式分解 x²+4x−45: (x−5)(x+9)

=(x−5)(x+9)x²+x−30

因式分解 x²+x−30: (x−5)(x+6)

=(x−5)(x+9)(x−5)(x+6)

约分:x−5

=x+9x+6

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−▭▭	<	7	8	9	÷	`AC`
+▭▭	>	4	5	6	×	☐☐☐
×▭▭	(	1	2	3	−	`x`
▭ \|▭	)	.	0	=	+	`y`

求反函数 1/y

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