## buddhababy002 Group Title Can someone help me with this equation? I'm trying but it's not coming out right. 2 years ago 2 years ago

1. buddhababy002 Group Title

Find an exact solution for Then, find the approximate solution.

2. satellite73 Group Title

start by "cross multiplying" to get $2(\sqrt{5}-1)=\sqrt{5}x$

3. RyanL. Group Title

$x=\frac{2(\sqrt{5}-1)}{\sqrt{5}}$

4. satellite73 Group Title

$2\sqrt{5}-2=\sqrt{5}x$ $x=\frac{2\sqrt{5}-2}{\sqrt{5}}$

5. satellite73 Group Title

maybe you need to "rationalize the denominator" as well

6. RyanL. Group Title

multiply and divide. You just have to keep track of things. It's better when you put parentheses on things when you do this.

7. buddhababy002 Group Title

okay, i'll try again..

8. buddhababy002 Group Title

I'm still getting an answer thats not on my choice list.. :/

9. nitz Group Title

what are ur choices????

10. buddhababy002 Group Title

a. 10-2 sqrt5/5; 1.1 b. 2-2sqrt5; -2.5 c. -2; 2 d. 2sqrt5-2/sqrt5; 1.1

11. nitz Group Title

ya its d

12. buddhababy002 Group Title

can you explain how you did and it got that answer please?

13. nitz Group Title

see the first part of d has already been solved by satellite 73

14. nitz Group Title

for 1.1,you can simply put the value of sqrt(5) and solve....

15. buddhababy002 Group Title

Oh i see.. lol ty