Basic’s

സർവ്വസമവാക്യങ്ങൾ. 🔹(a+b)² = a²+2ab+b² 🔹(a-b)² = a²-2ab+b² 🔹a²-b² = (a+b)(a-b) 🔹a³+b³ = (a+b)(a²-ab+b²) 🔹a³-b³ = (a-b)(a²+ab+b²) 🔹a³+b³ ─────── = a+b a²-ab+b² 🔹a³-b³ ────── = a-b a²+ab+b² 🔹(a+b)³ = a³+3a²b+3ab²+b³ 🔹(a-b)³ = a³-3a²b+3ab²-b³ 🔹(a+b)²+(a-b)² = 2(a²+b²) 🔹(a+b)² – (a-b)² = 4ab Continue reading