99 points
what is the product of (- a + 3)( a + 4)?
a ^2 - a - 12 not this one
-a ^2 - a - 12
-a ^2 - a + 12
a ^2 - a + 12

  -a^2 - a + 12

Step-by-step explanation:

You only need to find the products of the first and last terms to determine the correct

  (-a)(a) = -a^2

  (3)(4) = 12

You're looking for an expression with -1 as the leading coefficient and +12 as the constant. There is only one choice like that:

  -a^2 - a + 12

answer: a

step-by-step explanation:

10.2 units

just needed some points but try socratic