Hey, I need help with my Algebra II class. I have found math solver sites, but none give me the steps to do the problem! I don't want to be given the answers and not know what to do! Helppp?
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Hey, I need help with my Algebra II class. I have found math solver sites, but none give me the steps to do the problem! I don't want to be given the answers and not know what to do! Helppp?
Not quite the way to learn.
Post away with your thoughts and possible solutions.
Okay, so here's my big thing.. solving quadratic equations by factoring, I know it sounds stupid.. But, I don't understand the factoring process of it. Can you help?
Here's an example:
Identify the solutions to the equation 2x2 + 5x = 3 when you solve by factoring.
solving by factoring:
step 1: move everything to one side of the equation, leaving 0 on the other side.
2x^2 + 5x - 3 = 0
step 2: divide by the number in front of the highest factor (in this case 2), however, it will make this very ugly, so we'll skip that.
step 3: find factors
2x^2 + 5x - 3 = 0
(2x - 1)(x + 3) = 0
step 4: FOIL it out to see if that works
2x^2 + 6x - x - 3 = 0
step 5: solve
(2x - 1)(x + 3) = 0
2x - 1 = 0
x + 3 = 0
2x = 1
x = 1/2
x = -3
Assuming the 2x2 is 2x^2
Start by making it equal to zero
2x^2+5x-3 = 0
There are only two things that can get you 2x^2 and that's a 2x and an x
The only factors of 3 are 3 and 1; one has to be negative to end up with a -3
try them and arrive at:
(x+3) (2x-1) = 0 is the answer.
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