Formulas for Algebra
বীজগাণিতিক সূত্রাবলী (a+b)²= a²+2ab+b² (a+b)²= (a-b)²+4ab (a-b)²= a²-2ab+b² (a-b)²= (a+b)²-4ab a² + b²= (a+b)²-2ab a² + b²= (a-b)²+2ab a²-b²= (a +b)(a -b) 2(a²+b²)= (a+b)²+(a-b)² 4ab = (a+b)²-(a-b)² ab = {(a+b)/2}²-{(a-b)/2}² (a+b+c)² = a²+b²+c²+2(ab+bc+ca) (a+b)³ = a³+3a²b+3ab²+b³ (a+b)³ = a³+b³+3ab(a+b) a-b)³=… Read More »Formulas for Algebra