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kari74 [83]
3 years ago
15

How to solve 6x^2+5x-4=0

Mathematics
1 answer:
Vesna [10]3 years ago
6 0
6x^2+5x-4=0\\\\6x^2+8x-3x-4\\\\2x(3x+4)-1(3x+4)=0\\\\(3x+4)(2x-1)=0\iff3x+4=0\ or\ 2x-1=0\\\\3x=-4\ or\ 2x=1\\\\\boxed{x=-\frac{4}{3}\ or\ x=\frac{1}{2}}

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Plzz help me im going to most more like this because im not understanding it
lisov135 [29]
Hi there!

In order to solve, you can use substitution. This means that you use one equation and solve for one variable, then use that one equation and plug it into the other equation. Here's how we'd do it:

WORK:
x = 12 - y (since x is already solved for, we'll use that to plug into the other given equation.
2(12 - y) + 3y = 29 (using substitution)
24 - 2y + 3y = 29
24 + y = 29
y = 5
Plug the value of y back into the first equation
x = 12 - 5
x = 7

ANSWER:
A - x = 7, y = 5

It seems as though you're having some trouble with these questions, PLEASE MESSAGE ME!! I'd be more than happy to help you work through as many problems as you need until you get the hang of it (plus, it doesn't cost you any points!)

Hope this helps!! :)
If there's anything else that I can help you with, please let me know!
5 0
3 years ago
Suppose the 3 schools have succeeded in raising
goldfiish [28.3K]

Answer:

school b

Step-by-step explanation:

it has more

8 0
2 years ago
Gina Chuez has considered starting her own custom greeting card business. With an initial start up cost of $1500, she figures it
nordsb [41]
1500 + 0.45x < 1.70x
1500 < 1.70x - 0.45x
1500 < 1.25x
1500/1.25 < x
1200 < x.....so she would have to sell 1201 cards to make a profit

8 0
3 years ago
Read 2 more answers
What is 1 1/9 plus 3 5/8
Daniel [21]
I think the answer should be 4.7 but rounded up would be 5
6 0
2 years ago
Read 2 more answers
PLEASE HELP 15 POINTS
mart [117]
Area Y Square + Area of triangle
= 10x10+1/2x18x5
=100+9x5
=100+45
=145.
8 0
3 years ago
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