2) WILL GIVE MEDAL!!

Use the quadratic formula to solve 2y2 – 5y = –2.

a. {–½, 2}

b. {–½, –2}

c. {½, 2}

d. {½, –2}

@wolf1728

Question

2) WILL GIVE MEDAL!!


Use the quadratic formula to solve 2y2 – 5y  = –2.

a. {–½, 2}

b. {–½, –2}

c. {½, 2}

d. {½, –2}

@wolf1728

wolf1728 · Answer

a=2
b=-5
c=2

y = [--5 +-sqroot(25 -4*2*2)] / 4

y = [5 +sqroot(9)]/4

y1 = 2

y2 = [--5 -sqroot(25 -4*2*2)] / 4

y2 = (5 -3) / 4

y2 = .5

wolf1728 · Answer

Do you see why c=2 and NOT c=-2?

anonymous · Answer

kinda its because it has to be a positive...

anonymous · Answer

so it would be A

wolf1728 · Answer

No.
In order for the quadratic equation to work, the equation must always be set up
ay^2 +by +c = 0

and the answer is c

anonymous · Answer

c.

anonymous · Answer

ohh ok!!