Algebraic expression for : Eighteen subtracted from half a number.

18-1/2×

Step-by-step explanation:

subtracted means negative

half 1/2

a number u can pick any variable u want i picked x because is the most m

common one

9514 1404 393

  B)  y = (x -7)(4x +3)

Step-by-step explanation:

For zeros p and q, factors of the function are (x -p) and (x -q).

For the given zeros, the factors are (x -7) and (x -(-3/4)). By multiplying the latter by 4, we can eliminate the fraction.

  y = (x -7)(4x +3)