Answer:
D
Step-by-step explanation:
The numbers will add together to make the middle term and multiply to make the last one.
x² + 8x + 7
( x + 1 ) ( x + 7 )
Formula : -
( a + b ) ( a + c ) = a² + ( b + c )a + bc
Here,
a = x
b = 1
c = 7
= x² + ( 1 + 7 )x + 1 * 7
= x² + 8x + 7
