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

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x^2-5x-16>20

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

☐²

x^☐

√☐

^□√☐

□□

log_□

π

θ

∞

∫

ddx

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

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Steps Examples

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x²−5x−16>20

Solution

x<−4 or x>9

Interval Notation

(−∞ , −4)∪(9, ∞ )

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Solution steps

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x²−5x−16>20

Rewrite in standard form

x²−5x−36>0

Factor x²−5x−36: (x+4)(x−9)

(x+4)(x−9)>0

Identify the intervals

x<−4 or x>9

Number Line

x<−4 or x>9

Currency Converter Examples

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