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खालील वर्गसमीकरणासाठी विवेचकाची किंमत काढा. x2 + 7x - 1 = 0 - Mathematics 1 - Algebra [गणित १ - बीजगणित]

Sum

खालील वर्गसमीकरणासाठी विवेचकाची किंमत काढा.

x2 + 7x - 1 = 0

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Solution

x2 + 7x - 1 = 0 ची ax2 + bx + c = 0 शी तुलना करून,

a = 1, b = 7, c = - 1

∴ b2 - 4ac = (7)2 - 4 × 1 × (- 1) = 49 + 4

∴ b2 - 4ac = 53

Concept: वर्गसमीकरणाच्या मुळांचे स्वरूप (Nature of roots of a quadratic equation)
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APPEARS IN

Balbharati Mathematics 1 Algebra 10th Standard SSC Maharashtra State Board [गणित १ इयत्ता १० वी]
Chapter 2 वर्गसमीकरणे
सरावसंच 2.5 | Q 2. (1) | Page 49
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