railway RRB JE (CBT I + CBT II) Mock Test 2024 Quantitative Aptitude Algebra Quadratic Equation

जर द्विघात समीकरणाची दोन मुळे α, β असतील जिथे α + β = 8 आणि α – β = 2, तर समीकरण आहे:

1
x² – 8x + 15 = 0
2
x² + 8x – 15 = 0
3
x² – 8x – 15 = 0
4
x² + 8x + 15 = 0
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