someone please help me i am horrible at math

Question

kingogcobraxx · Answer

attachment

kingogcobraxx · Answer

@mathstudent55 @mathmate @karim728

kingogcobraxx · Answer

@YumYum247

kingogcobraxx · Answer

@CandyCove

kingogcobraxx · Answer

@FaiqRaees

faiqraees · Answer

$$\large\rm x=\frac{-b±\sqrt{b^2-4ac}}{2a} $$

kingogcobraxx · Answer

then what

kingogcobraxx · Answer

i have no idea what to do with that

mathmate · Answer

http://www.purplemath.com/modules/quadform.htm

silverfang492 · Answer

that is the quadratic equation. b is the second term, a is the first term, and c is the third term. Just plug them into the equation and keep negatives. $$\pm$$ just means positive or negative

kingogcobraxx · Answer

you explained it the best ^ still have no idea tho

jhonyy9 · Answer

so this is your quadratic

x^2 +7x +8 = 0

the discriminant has formula D = b^2 -4ac

where a= 1 so the coeficient of x^2 and b=7 the coeficient of x and c=8 the constant value the 3rd term of this quadratic 

now using these knowladge you can calculi easy the value of discriminant 

D = 7^2 -4*1*8 = ?

and after this hope you know formula for roots of this quadratic 

x_1,2 = (-b +/- sqrt(D))/2a 

and now just substitute these values of discriminant,of a,of b and make these calculi 

hope helped