tolong bantuannya guys no 9-10 pakai cara ya...

Nomer 10 jawabannya D

10. 2x-y = 2
-y = -2x+2
—————— x (-1)
y = 2x-2

Penyelesaian:
y=y
x²+5x-6 = 2x-2
x²+5x-2x-6+2 = 0
x²+3x-4 = 0
(x+4)(x-1) = 0
x+4 = 0
x = -4 (a)

x-1=0
x=1 (c)

x = -4 (a)
y = x²+5x-6
= (-4)²+5(-4)-6
= 16-20-6
= -10 (b)

x = 1 (c)
y = x²+5x-6
= (1)²+5(1)-6
= 1+5-6
= 0 (d)

= (a,b) dan (c,d)
= (-4,-10) dan (1,0)
Jawabannya D