Tentukan nilai a,b,c dari persamaan a.2×2-5×+3=0 b.x²-9=0 c.-x²+4×=0
Penjelasan dengan langkah-langkah:
a.2x² – 5x + 3 = 0
a = 2 , b = -5 , c = 3
Nilai X1 + X2 = -b/a
= -(-5)/2
= 5/2
Nilai X1.X2 = c/a
= 3/2
b.x² – 9 = 0
x² – 9 – 0
a = 1 , b = -9 , c = -0
Nilai X1 + X2 = -b/a
= -(-9)/1
= 9/1
Nilai X1.X2 = c/a
= -0/1
= 0
c.-x² + 4x = 0
-x² + 4x – 0
a = -1 , b = 4 , c = -0
Nilai X1 + X2 = -b/a
= -4/-1
= 4
Nilai X1.X2 = c/a
= -0/-1