A rectangle has a height of 5 and a width of 4x^2-2x-6

(2x+1) (2*-6)

Step-by-step explanation:

factor out the 2s for 4x²-2x-6 to get 2 (2x²-*-3)

then factor by grouping and then remove unnecessary parentheses to get (2x+1) (2*-1)