Question

hi

Answer 1

\[18\pm \sqrt{18^{2}}-4(1)(4) \over2(1)\]

Answer 2

\[-18\pm2\sqrt{77}\over 2\]

Answer 3

please show me where the 77 came from?

Answer 4

first of all, you have missed - in front of 18 in the first part

Answer 5

yes id did, sorry

Answer 6

this is an example

Answer 7

secondly, 2rt(77) = rt(4) . rt(77) = rt ( 4 . 77) = rt (308) = rt( 18 sq.-4.1.4)

Answer 8

so, did u get how 77 come?

Answer 9

not really, but I will figure it out. if i have to

Answer 10

rt means root under and sq means square !

Answer 11

i know that. i just wanted someone to show me how where the 77 came from by using the numbers in the equation from beginning to end, not end to beginning