Bidang studi:
MatematikaPenulis:
augustoDibuat:
1 tahun laluJawaban:
x² + bx + c = 0
(-1)² - b + c = 0
b - c = 1
b = 1 + c
x² + bx + c = 0
(3)² + b(3) + c = 0
3b + c = -9
3(1 + c) + c = -9
3 + 4c = -9
4c = -12
c = -3
x² + bx + c = 0
(-1)² + b(-1) + (-3) = 0
1 - b - 3 = 0
-b = 2
b = -2
Penulis:
cristian9ucf
Nilai jawaban:
4Jawab:b = -2
Penjelasan :x² + bx + c = 0a = 1p = -1, q = 3Vietap + q = -b ÷ a-1 + 3 = -b ÷ 12 = -b ÷ 1b = 2(-1)b = -2
(xcvi)
Penulis:
leegf9g
Nilai jawaban:
0