Factoring Trinomials (Quadratics) : Lucid Explanati
Consider the product of the two linear expressions (y+a) and (y+b).(y+a)(y+b) = y(y+b) + a(y+b) = y^2 + by + ay + ab = y^2 + y(a+b) + abWe can write it asy^2 + y(a+b) + ab = (y+a)(y+b) .......(i)Similarly, Consider the product of the two lin...英国华人论坛