common.or
common.or
i. যেখানে a > 0.
ii. যেখানে x > 0
x2 + 10x+16 - y2 + 6y কে উৎপাদকে বিশ্লেষণ কর।
x^2+10x+16-y^2+6y
= x^2+10x+25-y^2+6y-9
=x^2+10x+25-(y^2-6y+9)
=x^2+2.x.5+5^2-(y^2-2.y.3+3^2)
=(x+5)^2-(y-3)^2
=(x+5+y-3)(x+5-y+3)
=(x+y+2)(x-y+8)
