Jawaban:
a. x²-4x-2= 0
Penjelasan dengan langkah-langkah:
p + q= -b/a= -(-2)/1 = 2
pq= c/a= -5/1= -5
(x-(p+1))(x-(q+1))= 0
x²-(p+q+2)x + (pq+p+q+1)= 0
x²-(2+2)x+(-5+2+1)= 0
x²-4x-2= 0
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Jawaban:
a. x²-4x-2= 0
Penjelasan dengan langkah-langkah:
p + q= -b/a= -(-2)/1 = 2
pq= c/a= -5/1= -5
(x-(p+1))(x-(q+1))= 0
x²-(p+q+2)x + (pq+p+q+1)= 0
x²-(2+2)x+(-5+2+1)= 0
x²-4x-2= 0