5x² − 20xy + 4y + 3 ifodaning qiymati x = −1 bo'lganda 10 ga teng bo'ladigan y ni toping?
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3
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-3
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−¹/₃
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¹/₁₂
📝 Detailed explanation
x = −1 qiymatni ifodaga qo'yib, uni 10 ga tenglaymiz: 5(−1)² − 20(−1)y + 4y + 3 = 10 ⇒ 5 + 20y + 4y + 3 = 10 ⇒ 8 + 24y = 10 ⇒ 24y = 2 ⇒ y = ²/₂₄ = ¹/₁₂.
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