Factor completely. If unfactorable, indicate that the polynomial is prime.
-$$\mathrm { z } ^ { 2 } - 49$$
A) $( z + 7 ) ( z - 7 )$
B) $( z - 7 ) ^ { 2 }$
C) prime
D) $( \mathrm { z } + 7 ) ^ { 2 }$

Name: Factor completely. If unfactorable, indicate that the polynomial is prime. -\[\mathrm { z } ^ { 2 } - 49\] A) $( z + 7 ) ( z - 7 )$ B) $( z - 7 ) ^ { 2 }$ C) prime D) $( \mathrm { z } + 7 ) ^ { 2 }$
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Question

Quizplus · Accepted Answer

This is a difference of squares, factored as $(z + 7)(z - 7)$.

Factor Completely z2−49\mathrm { z } ^ { 2 } - 49z2−49

Factor Completely $\mathrm { z } ^ { 2 } - 49$