Wp/grc/Δευτεροβαθμία ἐξίσωσις

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File:Quadratic function.png
Γράφημα ἐξισώσεως y = 6x2 + 4x + 8. Τὰ τῶν δευτεροβαθμίων γραφήματα ἀεὶ παραβολαί εἰσι.

Δευτεροβαθμία ἐξίσωσις ἐν τῇ Μαθηματικῇ ἐστιν ἐξίσωσις τῆς μορφῆς

αx2+βx+γ=0,,

ὅπου τὰ γράμματα α, β καὶ γ ἀριθμοί εἰσι καὶ τὸ x ἄγνωστον.

Εἷς τρόπος λῦσαι ταύτην ἐστὶν τῷδε·

x=b±b24ac2a.

Σύνδεσμοι Ἐξώτεροι

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