melengkapkan kuadrat sempurna 2x²+5x-3=0
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Jawab:
Penjelasan dengan langkah-langkah:
2x² + 5x -3 - (-3) = -(-3)
2x² + 5x = 3
x² + 5x/2 = 3/2
x² + 5x/2 + (5/4)² = 3/2 + (5/4)²
(x + 5/4)² = 49/16
[tex]\sqrt{(x+\frac{5}{4} )^2} = \sqrt{\frac{49}{16} }[/tex]
x + 5/4 = 7/4
x1 = 1/2
x + 5/4 = -7/4
x2 -3
JADIKAN JAWABAN TERFAVORIT !!
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