miền sqrt(x+1)

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

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

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rút gọn (−7w²−2w−1)−(−5w²+3w−2)

Solution

−2w²−5w+1

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Solution steps

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(−7w²−2w−1)−(−5w²+3w−2)

Áp dụng quy tắc: (a)=a

(−7w²−2w−1)=−7w²−2w−1

=−7w²−2w−1−(−5w²+3w−2)

Áp dụng luật phân phối: −(−a+b)=a−b

−(−5w²+3w−2)=5w²−3w+2

=−7w²−2w−1+5w²−3w+2

Nhóm các thuật ngữ

=−7w²+5w²−2w−3w−1+2

Thêm các phần tử tương tự: −7w²+5w²=−2w²

=−2w²−2w−3w−1+2

Thêm các phần tử tương tự: −2w−3w=−5w

=−2w²−5w−1+2

Thêm các số: −1+2=1

=−2w²−5w+1

Solve instead

f(w)=(−7w²−2w−1)−(−5w²+3w−2)

ddw ((−7w²−2w−1)−(−5w²+3w−2))

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

miền sqrt(x+1)

Solution

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