Solve using the quadratic formula. 2f2 – 9f + 5 = 0
2f² - 9f + 5 = 0
Quadratic formula: x = ( -b ± √(b² - 4ac) ) / (2a)
In this case: a = 2 b = -9 c = 5
x = ( --9 ± √( (-9)² - 4(2)(5) ) ) / ( 2(2) )
x = ( 9 ± √( 81 - 40 ) ) / ( 4 )
x = ( 9 ± √( 41 ) ) / 4