Question

Ada yang tau invers dari fungsi g(x)= 2x²+6x+5=0
tolong ya...

Answer 1

G(x) = 2(x² + 3x + 5/2)
       = 2{(x + 3/2)² + 1/4}
y     = 2(x + 3/2)² + 1/4
(y - 1/4)/2 = (x + 3/2)²
√[(4y - 1)/8 - 3/2] = x
g⁻¹(x) = √[(4x - 1)/8 - 3/2]