Awoman throws a baseball from the front of an airplane to the back. from the perspective of the woman, the baseball travels at an average speed of 15 m/s. to an observer on the ground, the airplane is traveling at a constant speed of 820 km/h. what is the speed of the baseball from the perspective of the ground observer?

there are many solutions.

step-by-step explanation:

step 1: simplify both sides of the equation.

4x+6=4x^2+10x−4

step 2: subtract 4x^2+10x-4 from both sides.

4x+6−(4x^2+10x−4)=4x^2+10x−4−(4x^2+10x−4)

−4x^2−6x+10=0

step 3: factor left side of equation.

−2(2x+5)(x−1)=0

step 4: set factors equal to 0.

x=-5/2 or x=1

ok

step-by-step explanation:

ab will be equal to