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• ax^2 +bx + c = 0
• x^2 -(x1+x2)x + (x1.x2) = 0
hiraukan saja 4x -12.2x nya, yg tidak memiliki variabel " x " itulah c.
dalam perasamaan kuadrat
c = (x1.x2)
(x1.x2) = 32 #D
------- jika x berupa pangkat 4^x -12^[2x] +32 = 0 Asumsikan 2x = y y^2 -12y +32 = 0 (y-4)(y-8) = 0 Y = 8 | y = 4 Ujikan nilai " y " • 2^x = 8 2^x = 2^3 X1 = 3 • 2^x = 4 2^x = 2^2 X2 = 2 X1 + x2 = (3) × (2) = 6 #B • 4^x =
Semoga Membantu
NB : Lain kali tulis soal pangkatnya jangan lupa!!!