What is the solution set of 2x^2 - 3x = 5?
(-1,-5/2)
(-1, 5/2}
(1.-5/2}

(-1 , 5/2)

Step-by-step explanation:

2x²-3x=5

2x²-3x-5=0

2x²+2x-5x-5*1=0

2x(x+1)-5(x+1)=0

(x+1)(2x-5)=0

x+1=0     ;2x-5=0

x=-1  ;  2x=5

x= -1   ; x=5/2

which expression can be used to convert 80 us dollars (usd) to australian dollars (aud)?

1 usd = 1.0343 aud

1 aud = 0.9668 usd

step-by-step explanation:

sorry just need the points