Factor completely. If the polynomial cannot be factored, write ʺprime.ʺ
-$$x ^ { 2 } + 4 x - 21$$
A) $( x - 21 ) ( x + 4 )$
B) $( x - 7 ) ( x + 3 )$
C) $( x + 7 ) ( x - 3 )$
D) Prime

Name: Factor completely. If the polynomial cannot be factored, write ʺprime.ʺ -\[x ^ { 2 } + 4 x - 21\] A) $( x - 21 ) ( x + 4 )$ B) $( x - 7 ) ( x + 3 )$ C) $( x + 7 ) ( x - 3 )$ D) Prime
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Question

Quizplus · Accepted Answer

The correct factorization is $(x + 7)(x - 3)$ because when multiplied, it gives $x^2 + 4x - 21$.

Factor Completely x2+4x−21x ^ { 2 } + 4 x - 21x2+4x−21

Factor Completely $x ^ { 2 } + 4 x - 21$