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# Common Core Standard HSN-CN.C.8 Questions

(+) Extend polynomial identities to the complex numbers. For example, rewrite x2 + 4 as (x + 2i)(x – 2i).

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Grade 12 Complex Numbers CCSS: HSN-CN.C.8
Factor $x^2+16$
1. $sqrt16i$
2. $(x-4i)(x+4i)$
3. $+-sqrt4$
4. $(x+2i)(x-2i)$
Grade 12 Complex Numbers CCSS: HSN-CN.C.8
Factor $x^2+12$
1. $2sqrt3i$
2. $(x-4i)(x+4i)$
3. $+-sqrt12$
4. $(x+2sqrt3i)(x-2sqrt3i)$
Grade 12 Complex Numbers CCSS: HSN-CN.C.8
Factor $x^2+64$
1. $(x+8i)(x-8i)$
2. $(x-8)(x+8)$
3. $+-sqrt64$
4. $(x+64i)(x-64i)$
Grade 12 Complex Numbers CCSS: HSN-CN.C.8
Factor $x^2+100$
1. $sqrt100i$
2. $(x-10)(x+10)$
3. $+-sqrt100$
4. $(x+10i)(x-10i)$
Grade 12 Complex Numbers CCSS: HSN-CN.C.8
Find the roots of $x^2+12$
1. $2sqrt3$
2. $+-2sqrt3i$
3. $+-sqrt12$
4. $(x+2sqrt3i)(x-2sqrt3i)$
Grade 9 Complex Numbers CCSS: HSN-CN.C.8

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Grade 9 Complex Numbers CCSS: HSN-CN.C.8

This question is a part of a group with common instructions. View group »

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