Find the exact solutions and simplify as much as possible 6x
Find the exact solutions and simplify as much as possible: 6x^2 + 3 = 10x. Show work.
Solution
Given that
6x2 + 3 = 10x
6x2 - 10x + 3 = 0...........................1
If the equation is in the form of quadratic equation ax2+ bx + c = 0 then the solution is ,
x = [ -b ± (b2 - 4ac) ]/2a
From equation 1
a = 6 , b = -10 , c = 3
x = [ -(-10) ± ((-10)2 - 4.6.3) ]/2.6
= [ 10 ± (100 - 72 ) ]/12
= [10 ± 28 ]/12
= [10 ± 27 ]12
= [ 5 ± 7 ]/6
Hence ,
The solutions are , x = [ 5 + 7 ]/6 , [ 5 - 7 ]/6
