The height h (in feet) of a projectile can be modeled by h=-16²+vt+s

where t is the time (in seconds) and v is the initial velocity (in feet per second) and s is the initial height (in feet)

If a started armadillo jumps straight into the air with an initial vertical velocity of 14 feet per second, how many seconds does it take to land on the ground?

Look, when you want to do something like put it like x^2. x2 could mean x² or x₂. so to clear confusion, know the notation. to find the product multiply the x's and you get -8x and the y's and you get 6y. since it's all being multiplied it is just -8x6y, or answer a. although the better answer is -48xy(combining -8 and 6) because you should multiply constants whenever you can.