Use any method to factor $x ^ { 2 } + 7 x - 18$
A) $( x - 2 ) ( x + 9 )$
B) $( x + 2 ) ( x - 9 )$
C) $( x - 2 ) ( x - 9 )$
D) $( x - 3 ) ( x + 6 )$
E) $( x + 3 ) ( x - 6 )$

Question

Quizplus · Accepted Answer

The correct factorization is found by looking for two numbers that multiply to -18 and add to 7. The numbers 9 and -2 fit this criterion, so the factorization is $(x - 2)(x + 9)$.

Use Any Method to Factor x2+7x−18x ^ { 2 } + 7 x - 18x2+7x−18

Use Any Method to Factor $x ^ { 2 } + 7 x - 18$