number two done
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Problem #3: 4x²+4x-4
4(x²+x-1)=0
4(x+1)(x-1)=0
x=-1 or 1
God, I hope that's correct.
Omg I have no idea this is so embarassing
Apr 24, 2021
0
#25
Problem 3. 4x²+4x-4=0
1. Use the quadratic formula x=−b±√b²−4ac over 2a
2.Substitute and solve
3. Comes down to 1±√5 over 2
4. Use the plus or minus sign
5. the answer is
x = φ, the Golden Ratio (1.618)
or x = -0.618
Are you some kind of math genius?
I seem to remember doing something like that, but I just can't remember anything about the quadratic formula!
I'm going to have to look it up again.
Apr 25, 2021
0
#30
Shark_Tom_555 wrote:
SlimJim07 wrote:
I will be making math problems:
I will give a trophie to the first 5 people who solve it correctly.
Remember, these are super easy, but I will make them harder as they go on.
Pre-Algebra problem: What is the mean of the set of numbers {1,3,4,2,5,8,9,3,2,3}
Algebra: Solve for x: (2x^2)+3x-9
Algebra 2 (you may have learned this in algebra 1): Solve for x: (4(x)^2)+4x-4
Thanks!
and also you can't solve for it if it's only an expression
i said earlier that there should be an =0 at the end of the quadratics
Apr 25, 2021
0
#31
starsplitting wrote:
number two done
done
#3, also if you did the quadratic formula, you can easily do #3
Apr 25, 2021
0
#32
starsplitting wrote:
Problem 3. 4x²+4x-4=0
1. Use the quadratic formula x=−b±√b²−4ac over 2a
2.Substitute and solve
3. Comes down to 1±√5 over 2
4. Use the plus or minus sign
5. the answer is
x = φ, the Golden Ratio (1.618)
or x = -0.618
oh nvm, you did #3, so nice job for being first to solve
Apr 25, 2021
0
#33
SlimJim07 wrote:
starsplitting wrote:
Problem 3. 4x²+4x-4=0
1. Use the quadratic formula x=−b±√b²−4ac over 2a
2.Substitute and solve
3. Comes down to 1±√5 over 2
4. Use the plus or minus sign
5. the answer is
x = φ, the Golden Ratio (1.618)
or x = -0.618
oh nvm, you did #3, so nice job for being first to solve
wait actually its wrong
Apr 25, 2021
0
#34
TheTeensGambit wrote:
Problem #3: 4x²+4x-4
4(x²+x-1)=0
4(x+1)(x-1)=0
x=-1 or 1
God, I hope that's correct.
its not correct, but ill still give you a trophie for testing your limits
good try 
you can factor out a four, but then you cant factor (x^2)+x-1 so you have to use quad formula
I will be making math problems:
I will give a trophie to the first 5 people who solve it correctly.
Remember, these are super easy, but I will make them harder as they go on.
Pre-Algebra problem: What is the mean of the set of numbers {1,3,4,2,5,8,9,3,2,3}
Algebra: Solve for x: (2x^2)+3x-9
Algebra 2 (you may have learned this in algebra 1): Solve for x: (4(x)^2)+4x-4
Thanks!
and also you can't solve for it if it's only an expression