Makayla43
Solve by factoring.
4x2 + 23x + 15 = 0
Delete
Share
This Question is Closed
timo86m
Best Response
You've already chosen the best response.
0
ooh i like these
freckles
Best Response
You've already chosen the best response.
0
\[ax^2+bx+c=0\]
So what you want to do is find factors of a*c that have product a*c and sum b.
timo86m
Best Response
You've already chosen the best response.
0
(x+5)*(4*x+3)
Makayla43
Best Response
You've already chosen the best response.
0
Good! Can you help me?
freckles
Best Response
You've already chosen the best response.
0
find two factors*
freckles
Best Response
You've already chosen the best response.
0
So what is a here?
And what is b here?
And what is c here?
Makayla43
Best Response
You've already chosen the best response.
0
\[4x ^{2}+23x+15=0\]
timo86m
Best Response
You've already chosen the best response.
0
(x+5)*(4*x+3)
x= -5 and -3/4 right
freckles
Best Response
You've already chosen the best response.
0
@timo86m I don't think it helps to give the answer. Can you explain how you got those factors?
Makayla43
Best Response
You've already chosen the best response.
0
A:x = 0.8 or x = -0.75 C:x = 0.75 or x = 5
B:x = -3 or x = -1.25 D:x = -0.75 or x = -5
freckles
Best Response
You've already chosen the best response.
0
@Makayla43 if you want to learn this, I'm trying to teach you.
freckles
Best Response
You've already chosen the best response.
0
What is a,b, and c in your equation?
Makayla43
Best Response
You've already chosen the best response.
0
@KNicksfan4life :D (:
KNicksfan4life
Best Response
You've already chosen the best response.
0
(4x-3)(x-5)
Makayla43
Best Response
You've already chosen the best response.
0
@freckles what do you mean a,b,and c?
KNicksfan4life
Best Response
You've already chosen the best response.
0
is that rite
timo86m
Best Response
You've already chosen the best response.
0
it not right
freckles
Best Response
You've already chosen the best response.
0
\[ax^2+bx+c=0\]
\[4x^2+23x+15=0\]
timo86m
Best Response
You've already chosen the best response.
0
(x+5)*(4*x+3) if you not sure you can always expand this
Makayla43
Best Response
You've already chosen the best response.
0
Solve by factoring.
-3x2 - x + 2 = 0
timo86m
Best Response
You've already chosen the best response.
0
-(x+1)*(3*x-2)
Makayla43
Best Response
You've already chosen the best response.
0
\[-3x ^{2}-x+2=0\]
timo86m
Best Response
You've already chosen the best response.
0
-3x2 - x + 2 = 0
you actually mean
-3x^2 - x + 2 = 0
Makayla43
Best Response
You've already chosen the best response.
0
A:x = 0.5 or x = 0.33333 C:x = 1 or x = -0.66667
B:x = 0.33333 or x = -2 D:x = -1 or x = 0.66667
timo86m
Best Response
You've already chosen the best response.
0
I think it d
myininaya
Best Response
You've already chosen the best response.
0
You guys how is this teaching and how is this learning?
Please try to teach @Makayla43 and not just give the answer.
And @Makayla43 you shouldn't be just looking for answers.
I think freckles here was trying to teach you how to do this.
Makayla43
Best Response
You've already chosen the best response.
0
Omg.
timo86m
Best Response
You've already chosen the best response.
0
i teached, I said expand my factor if she doubts it lol.
myininaya
Best Response
You've already chosen the best response.
0
But @timo86m how do you get the factors? Please explain that part so she will know how to do it.
Makayla43
Best Response
You've already chosen the best response.
0
Goodbye. He sent me a message a explained.
timo86m
Best Response
You've already chosen the best response.
0
4x2 + 23x + 15 = 0
number that up to 15 and product is 23
timo86m
Best Response
You've already chosen the best response.
0
To factor is mostly guess work that is where I draw the line :)
timo86m
Best Response
You've already chosen the best response.
0
number that up to c and product is b coefficient.
It is more important to show why it works then how to do something that is mostly guess work.