Question

Tolong jwb nmr 4 y
sekalian caranya

Answer 1

Jawaban : D
y=2x^2-(p+4)x+(p-1)
(-5,63)
63=2(-5)^2-(p+4)(-5)+(p-1)
63=50+5p+20+p-1
-6=6p
p=-1
y=2x^2-3x-2
0= 2x^2-3x-2
0=(2x+1)(x-2)
x=-1/2 atau x=2

Answer 2

2x² - (p+4)x + (p-1)=y melalui (-5,63)
 2 (-5)² - (p+4)(-5)+(p-1)=63
.....50 +5p +20 +p-1=63 ...p= -6/6 =-1

2x² - 3x - 2=y

memtong sb-x ...y=0

2x²- 3x - 2=0 ....(2x +1)(x - 2)=0  ..x=-1/2  dan x=2