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anonymous
 one year ago
...Solve the following system of equations and show all work.
y = 2x2
y = –3x −1
anonymous
 one year ago
...Solve the following system of equations and show all work. y = 2x2 y = –3x −1

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anonymous
 one year ago
Best ResponseYou've already chosen the best response.0please help... I Dont understand

welshfella
 one year ago
Best ResponseYou've already chosen the best response.0since both expressions in x are equal to y then they are equal to each other so 2x^2 = 3x  1

welshfella
 one year ago
Best ResponseYou've already chosen the best response.0this is a quadratic so write it as 2x^2 + 3x + 1 = 0 can you solve this for x?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0what do i do with the 2x^2

welshfella
 one year ago
Best ResponseYou've already chosen the best response.0this will factor to the form (2x + a)(x + b) = 0 to find a and b you need to find 2 numbers a and b where ab = 1 and a + 2b = 3

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0okay hold on while i figure this sorry im really bad at this

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0i cant im coming up with things like 2x+ 3x+ 2

welshfella
 one year ago
Best ResponseYou've already chosen the best response.0what 2 numbers multiplied together give + 1?  think of the obvious ones

welshfella
 one year ago
Best ResponseYou've already chosen the best response.0yes either of those but also a + 2b = 3 so which ones are they?

welshfella
 one year ago
Best ResponseYou've already chosen the best response.0plug in the 1 and 1 and then the 1 and 1 and see which of these fit

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0for the negatives i got 3

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0and the positive i got 2

welshfella
 one year ago
Best ResponseYou've already chosen the best response.02 for the positive? try again

welshfella
 one year ago
Best ResponseYou've already chosen the best response.0you need it to be = 3

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0yes now ive got it lol i must of did it wrong

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0now that we have that info what do i do next

welshfella
 one year ago
Best ResponseYou've already chosen the best response.0you now have the values of a and b so we can factor the equation (2x + 1)(x + 1) = 0 now when 2 things are multiplied and the result is 0 then either one of these can be 0 so we have 2x + 1 = 0 or x + 1 = 0 so you can solve these 2 equations to give 2 values of x then using these values of x plug them into one of the original equations to give the corresponding values of y
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