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anonymous
 one year ago
FAN AND MEDAL!
How do you solve x^2+5x+6=0 ?
anonymous
 one year ago
FAN AND MEDAL! How do you solve x^2+5x+6=0 ?

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anonymous
 one year ago
Best ResponseYou've already chosen the best response.0@warpedkitten @Empty @enchanted_bubbles @RedNeckOutLaw @Teddyiswatshecallsme @yomamabf @uybuyvf @ikram002p @imqwerty @OregonDuck @phi @abb0t @sammixboo @DullJackel09 @futureboy1 @GeniousCreation @Hero @jagr2713 @KAKES1967 @Loser66 @zmudz

zmudz
 one year ago
Best ResponseYou've already chosen the best response.0quadratic formula should do the trick, or you could factor into \((x6)(x+1)\) and solve for x that way

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0@zmudz i did this but its wrong x^2+5x+6=0 (x^2x)+(6x+6)=0 x(x+1)+6(x+1)=0 (x+6)(x+1)=0 x+6=0 x=6 x=6 x+1=0 x=1

zmudz
 one year ago
Best ResponseYou've already chosen the best response.0Ah, double check your math for when you solved x=1

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0no they are both wrong i used a graphing calculator and the zeroes are x=0 and x=1.2

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0it wants me to solve this system algebraically

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0Lol your answers x=6 and x=1 are both correct.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0@phi i don't know what i did wrong in solving this

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0If they want you to solve it algebraically, then why did you use a graphing calculator? :D

phi
 one year ago
Best ResponseYou've already chosen the best response.1I would first multiply both sides and all terms by 1 (because I don't like x^2) what do you get ?

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0because the second part is for me to graph it to prove my answers

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0How I wish we were allowed to use a graphing calculator when we graph something. Do you know how to plot points like this? dw:1439243109664:dw

phi
 one year ago
Best ResponseYou've already chosen the best response.1but it looks like you did it correctly up top x= 6 and x=1

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0(x^22x)(3x6)=0 x(x2)3(x2)=0 (x3)(x2)=0 x=3 and x=2

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0wait i messed up on the sign there

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0ok I'm confused @phi

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0This is if you graph it

phi
 one year ago
Best ResponseYou've already chosen the best response.1ok, so \[ x^2 = 5x+6 \\ x^2 5x6=0\\ (x6)(x+1)= 0 \\ x= 6 ; x= 1 \] y= 5x+6 so at x= 1, y= 1 at x= 6 , y= 36 here is the graph with the first solution showing

phi
 one year ago
Best ResponseYou've already chosen the best response.1the solution is where the two curves cross (intersect) it is true when we are given a single curve (or line), we are often interested in where it crosses the xaxis (the x value is called the zero) but not in this case.

phi
 one year ago
Best ResponseYou've already chosen the best response.1solving two equations is the same as asking "what point lies on both curves"

phi
 one year ago
Best ResponseYou've already chosen the best response.1there are two solutions 1,1 and (6,36)

phi
 one year ago
Best ResponseYou've already chosen the best response.1you had the right idea except for the final step... once you found x= 1 or x=6 you find the y value (using either equation) and the (x,y) pairs are where the two curves intersect. i.e. are the "solutions"

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0oh ok thank you i have to go :)
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