What is the answer too x^2 + 2x

Mathematics

1 answer:

prisoha [69]2 years ago

3 0

Answer:

x=0 and x=−2

Step-by-step explanation:

Explanation:

You can factor x2+2x=0

as: x(x2)=0

Now, we can solve each term for 0:x=0 - no other work needed,

and

x+2=0

x+2−2=0−2

x+0−2x=−2

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-4x - 6y = 6<br> 4x + 6y = -4

Sloan [31]

Step-by-step explanation:

$-4x - 6y = 6$

$4x + 6y = -4$

To solve a system of equations, we can add the two equations and solve for one of the remaining variables -- let's try to eliminate the $x$ variable when we add the two equations together.

Right now, there's a $-4x$ term in the first equation, and a $4x$ term in the second equation, so if we add those together, we'll be able to eliminate the $x$ variable altogether and solve for $y$ .

However, when we also have a $-6y$ term in the first equation and $6y$ term in the second equation, so adding these together will also eliminate the $y$ term, leaving a $0$ on the left-hand side of the equation.

If we add the two numbers on the right side of the equation, we get $-2$ , which does not equal $0$ , meaning there are no solutions to this system of equations.