Question

Solve 5x2 – 11x + 2 = 0 using the Quadratic Formula.





Quadratic Formula is ax^3+bx^2=cx right?

Answer 1

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

Answer 2

a=5 b=-11 c=2

Answer 3

\[\frac{ 11\pm \sqrt{11^{2}-4(5)(2)} }{ 2(5) }\]

Answer 4

\[\frac{ 11\pm \sqrt{121-40} }{ 10}\]

Answer 5

\[\frac{ 11\pm \sqrt{81} }{ 10 }\]

Answer 6

\[\frac{ 11\pm9 }{ 10 }\]

Answer 7

\[\frac{ 2 }{ 10 }\]

Answer 8

can you simplify that?

Answer 9

1/5th sorry i was doing somethin

Answer 10

@pgpilot326 did i do that right?

Answer 11

messed up while plugging in the 11 should by negative before squared but itll come out positive

Answer 12

plus or minus... you should get 2 answers.

Answer 13

oh i thought that meant negative >.< my bad so one answer is
\[\frac{ 1 }{ 5 }\]

Answer 14

\[\frac{ 11+9 }{ 2 }\,\text {and }\frac{ 11-9 }{ 2 }\]

Answer 15

Wait now im confused x.x

Answer 16

\[\frac{ 20 }{ 2 }\]

Answer 17

it also factors so you can always use that as a check!

Answer 18

alright i messed up thought the +- meant negative so one is 20/2 can that be simplified?

Answer 19

10/1

Answer 20

sorry,\[\frac{ 11+9 }{ 10 }\, \text{ and } \frac{ 11-9 }{ 10 }\]

Answer 21

so 2 and 1/5

Answer 22

thanks @pgpilot326 >.<

Answer 23

Oh i was right c':

Answer 24

you're welcome!

Answer 25

just wasnt 100% positive.