Question

Solve. 3x2 – 7x – 2 = 0

Answer 1

do you know how you can solving a quadratic ?

Answer 2

us formula of discriminant

Answer 3

D = b^2 -4ac

Answer 4

so you dont know it how ?

Answer 5

no

Answer 6

\[3x^{2}-7x-2=0\]
Use the formula that jhonyy9 gave to calculate the Discriminant \[D=b^{2}-4ac\]
now use the quadratic formula
which is \[\frac{ -b \pm \sqrt{D} }{ 2a }\]
where a=3 b=-7 and c=-2

Answer 7

uhm ?

Answer 8

we use these formula's to solve the quadratic equations - \[ax^{2}+bx+c=0\]

Answer 9

I have no idea how to do it

Answer 10

\[x=\frac{-b \pm \sqrt{D} }{ 2a }\]

Answer 11

just put the values. first to calculate D and then in the above formula.

Answer 12

https://www.google.co.in/url?sa=t&rct=j&q=&esrc=s&source=web&cd=1&sqi=2&ved=0CDEQFjAA&url=https%3A%2F%2Fwww.purplemath.com%2Fmodules%2Fsolvquad4.htm&ei=OQxnUfHSAcmrrAe5x4DYBQ&usg=AFQjCNEhv3GygcSBUF_1nLDJ4MLIgY0wqA&sig2=UEHMhQOUEoEkFXKGSiNq0A&bvm=bv.45107431,d.bmk&cad=rjt

u can also refer this site

Answer 13

is the answer \[x=\frac{ 7\pm \sqrt{73} }{ 6 }\]

Answer 14

yes :-) ..!!

Answer 15

yayy