Find the roots of the equation.

Question

anonymous · Answer

$$5y ^{2} - 126y - 1008 = 0$$

hartnn · Answer

know the quadratic formula ?

hartnn · Answer

Compare your quadratic equation with $ay^2+by+c=0$
find $$a=...?\b=...?\c=...?\$$ $$ \ \sqrt{b^2-4ac}=...?$$
then the two roots of y are:
 $\huge{y_{1,2}=\frac{-b \pm \sqrt{b^2-4ac}}{2a}}$

anonymous · Answer

can you plz try and show me how to find the answer. 
i have been trying but i m  unable to solve it. @hartnn

hartnn · Answer

first step is to find values of a,b,c
need help with that too ?

anonymous · Answer

a = 5
b = -126
c = -1008
then?

isaiah.feynman · Answer

Substitute those numbers into the formula hartnn showed, and evaluate using your arithmetic skills.

hartnn · Answer

yes
now find whats b^2-4ac = ... ?

nincompoop · Answer

the discriminant tells you not the actual roots, does it?

anonymous · Answer

yes these are not actual roots.

nincompoop · Answer

:) but if you noticed that the discriminant is part of the quadratic formula, which solves for the actual roots

hartnn · Answer

^

anonymous · Answer

yes. that is why i asked for help. 
let me give the question to solve plz help me @nincompoop  @hartnn

anonymous · Answer

Out of a number of birds, one-fourth the number are moving about in lotus plants; 1/9th coupled (along) with 1/4th as well as 7 times the square root of the number move on a hill; 56 birds remain in the tree. What is the total number of birds?
 @hartnn  @nincompoop

nincompoop · Answer

we are not here to solve your homework, we are here to guide you or teach you how to approach and solve them.

anonymous · Answer

alright just help to form the equation atleast

nincompoop · Answer

that is one poorly constructed math problem

nincompoop · Answer

1/4; 1/9 "coupled" is multiplied by two in math (1 cannot make a couple and multiple wives does not apply either); 1/4 is another coupled; 7 times means multiplied by 7; 56

isaiah.feynman · Answer

Wait has that quadratic been yet??

anonymous · Answer

i can not understand anything :( 

HuH!!!

primeralph · Answer

@Princy123  What type of calculator do you have?

anonymous · Answer

i am calculating by myself

primeralph · Answer

Okay, then what's the problem?

anonymous · Answer

i can not get the equation of my question and so the answer also

primeralph · Answer

What did you get?

anonymous · Answer

nothing :(

primeralph · Answer

Really, all you have to do is plug in the numbers. If you can't do that, don't bother asking for  help. We like it when you show some effort.