I idalia17 New member Joined Dec 8, 2007 Messages 2 Dec 8, 2007 #1 Use the sum and product method of checkin solutions of quadratic equations to show that x=-9/2 and x= 6. Solve the equation. Here's what i got so far... sum = -3 ; product = -108 -12+9= -3 -12*9= -108 now im lost...
Use the sum and product method of checkin solutions of quadratic equations to show that x=-9/2 and x= 6. Solve the equation. Here's what i got so far... sum = -3 ; product = -108 -12+9= -3 -12*9= -108 now im lost...
D Denis Senior Member Joined Feb 17, 2004 Messages 1,700 Dec 8, 2007 #3 idalia17 said: Use the sum and product method of checkin solutions of quadratic equations to show that x=-9/2 and x= 6. Solve the equation. Click to expand... Don't know what you're asking/doing. If you have x=-9/2 and x= 6, then the equation factored is (2x + 9)(x - 6) = 0
idalia17 said: Use the sum and product method of checkin solutions of quadratic equations to show that x=-9/2 and x= 6. Solve the equation. Click to expand... Don't know what you're asking/doing. If you have x=-9/2 and x= 6, then the equation factored is (2x + 9)(x - 6) = 0
