y=2x²-3
y=3x-1
HOW do you find the solutions?

Question

y=2x²-3
y=3x-1
HOW do you find the solutions?

anonymous · Answer

@AravindG

johnweldon1993 · Answer

see how y = two different things?

set them equal to each other

anonymous · Answer

huh?

aravindg · Answer

both are equivalent to y so equate them !!

johnweldon1993 · Answer

y=2x²-3
y=3x-1

see how y = ...2 different things?

well by logic...that must mean that those 2 things are equal as well correct?

so

2x² - 3 = 3x - 1

now solve for x

anonymous · Answer

ok thanks

anonymous · Answer

2x² - 3 = 3x - 1
      +3          +3
2x²=3x+2
÷2      ÷2

Would that be 1.5x+1? doesn't sound right...

johnweldon1993 · Answer

2x² - 3 = 3x - 1

add 1 to both sides

2x² - 2 = 3x

subtract 3x from both sides

2x² -3x - 2 = 0

look like anything familiar?

anonymous · Answer

yes it does. Thank you so much!

johnweldon1993 · Answer

let us know what you get for your answers

anonymous · Answer

ok i think im going to finish tomorrow. I need to set up my birthday party really earily it its almost 1....
Will you be on tomorrow?

johnweldon1993 · Answer

haha ....probably not tomorrow...but anyone else would be glad to help you! :)

johnweldon1993 · Answer

and happy birthday :)

anonymous · Answer

Yeah i guess. Thanks!