Question

Y = 4x + p
y = x² - 2x + 3
mempunyai nilai tunggal. Nilai 4p ?

Answer 1

4x + p = x^2 - 2x + 3
p = x^2 - 2x - 4x + 3
p = x^2 -6x + 3

4p = 4( x^2 -6x+3)      
     = 4x^2 -24x+12

Answer 2

4x + p = x^2 -2x +3
x^2 -2x + 3 - 4x - p = 0
x^2 - 6x + 3 - p = 0

dari persamaan diatas diketahui=
a=1 b= -6 c= 3-p
D = 0
D = b^2 - 4ac
0 = -6^2 - 4(1)(3-p)
0 = 36 - 12 + 4p
-4p = 36 -12
-4p = 24
4p = -24