2 years ago

Please let me know. This is 2nd grade math.

Mathematics

2 answers:

Stolb23 [73]2 years ago

4 0

Can you show a photo of your question? Because I don't know how to answer that.

Nastasia [14]2 years ago

4 0

Answer:

Show a photo

Step-by-step explanation:

we can't see what you're talking about

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Which equation has the solutions X=1 +-SQRT 5?

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Answer:

D is correct. $x^2-2x-4=0$

Step-by-step explanation:

We are given the root of the equation

$x=1+\pm \sqrt{5}$

If we are given solution of the equation then find equation using formula.

If a and b are the solution of equation then equation would be (x-a)(x-b)=0

Here, $a=1+\sqrt{5} , b=1-\sqrt{5}$

Equation form would be $(x-1-\sqrt{5})(x-1+\sqrt{5})=0$

Now we simplify the above equation to get correct option.

$x^2-x+x\sqrt{5}-x+1-\sqrt{5}-x\sqrt{5}+\sqrt{5}-5=0$

$x^2-2x-4=0$

So, D is correct. $x^2-2x-4=0$

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