Determine the measure of ∠DGF

Which shows one way to determine the factors of 4x3 + x2 – 8x – 2 by grouping?

Acar started driving from city a to city b, distance between which is 620 miles, at a rate of 60 mph. two hours later a truck left city b and started moving towards city a at a rate of 40 mph. what distance from city a is the point where the truck and the car will meet?

Divide. –4.2 ÷ 6 = a –0.7 b 0.7 c –7 d 7 me