15x15

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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

simplify solve for inverse tangent line

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Steps Examples

Generated by AI

long multiplication 15× 15

Solution

225

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Solution steps

One step at a time

15× 15

Line up the numbers

	1	5
×	1	5

Multiply the top number by the bottom number one digit at a time starting with the ones digit (from right to left)

Multiply the top number by the bolded digit of the bottom number

	1	5
×	1	5

Mutliply the bold numbers: 5× 5=25

Carry 2 to the column on the left and write 5 in the result line

	2
	1	5
×	1	5

Add the carried number to the multiplication: 2+1× 5=7

	2
	1	5
×	1	5

Multiply the top number by the bolded digit of the bottom number

	1	5
×	1	5

Mutliply the bold numbers: 5× 1=5

		1	5
	×	1	5

		7	5
		5

Mutliply the bold numbers: 1× 1=1

		1	5
	×	1	5

		7	5
	1	5

Add the rows to get the answer. For simplicity, fill in trailing zeros

		1	5
	×	1	5

	0	7	5
	1	5	0

75+150=225

=225

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Notebook

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

15x15

Solution

Solution steps

Number Line