Question

2x2 + 12x = 10

−3 ± square root 14

−3 ± 2square root 2

−3 ± square root 19

−3 ± square root 29

Answer 1

So I take it we must use the quadratic formula here..

Answer 2

honestly I have no idea lol im lost as crap with this

Answer 3

\[2x ^{2}+12x-10=0\]

Answer 4

\[\frac{ -b \pm \sqrt{b ^{2}-4ac} }{ 2a }\]

Answer 5

A = 2
B = 12
C = -10

Do you understand... how I chose those numbers first?

Answer 6

not a clue man, I don't understand any of this stuff

Answer 7

\[ax ^{2}+bx+c = 2x ^{2}+12x-10\]

Answer 8

Now you see why 2 is a and 12 is b and -10 is c?

Answer 9

uhhh..sure

Answer 10

how do you find the answer

Answer 11

The formula... I am simply going to plug these numbers into their respective spots.

Answer 12

So it is imperative that you understand where I am pulling these numbers from... here we go...

Answer 13

\[\frac{ -12\pm \sqrt{12^{2}-4(2)(-10)} }{ 2(2) }\]

Answer 14

So now, if we simplify this... we should get...

Answer 15

\[\frac{ -12\pm \sqrt{224} }{ 4 }\]

Answer 16

\[\frac{ -3\pm 4\sqrt{14} }{ 4 }\]

Answer 17

The 4's reduce...

Answer 18

−3 ± square root 14
is your answer @tiffanyr96

Answer 19

Hopefully that helps somewhat... I understand that Math is everyone's cup of tea.