<span>2(3x+1) - (x-1)² = ?</span><br />

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Clasă: Education Materie: matematica

2(3x+1) - (x-1)² = ?

Întrebare a fost pusă de: USER1612

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USER2527

Cel mai bun răspuns

(313)

2(3x+1)-(x-1)²

(x-1)² -------- pentru aceasta ridicare la putere utilizam formula de calcul prescurtat a²-2ab+b²

Deci (x-1)²= x²-2x+1 (1)
iar 2(3x+1)=6x+2 (2)

Din (1) si (2) avem 6x+2-(x²-2x+1)=6x+2-x²+2x-1=-x²+8x+1

Răspunsul a fost dat în data 29 Agustus 2025

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2(3x+1) - (x-1)² = ?

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