4x²+12-7=0 a.pemfaktoran b.rumus a,b,c
Matematika
MUHAMMADIB6467
Pertanyaan
4x²+12-7=0 a.pemfaktoran b.rumus a,b,c
1 Jawaban
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1. Jawaban khim3
4x²+12x-7=0
A).Pemfaktoran
(x-1/2)(x+7/2)
x=1/2 atau x=−7/2
B).Rumus A,B,C
x=−b±√D/2a
=−12±√(12²-4(4)(-7)/2(4)
=−12±√256/8
=−12±16/8
x1=1/2
x2=−7/2