Respuesta :
Answer:
-(x - 7)(x + 6)
Step-by-step explanation:
Step 1: Factor GCF
-1(x² - x - 42)
Step 2: Factor quadratic
-1(x - 7)(x + 6)
Answer:
C
Step-by-step explanation:
-x²+x+42
=-(x²-x-42)
[7-6=1,7×-6=-42]
=-(x²-(7-6)x-42)
=-(x²-7x+6x-42)
=-[x(x-7)+6(x-7)]
=-(x-7)(x+6)