view - National Center for Education Development

ca, bf];|f] lrqsf] If]qkmn lgsfNg o;nfO{ cfotfsf/ agfpg b 2 sf] ljs0f{af6 l;wf sf6]/
lrqdf h:t} ldnfpg] .
ca of] Pp6f cfot aGof] . of] cfotsf] nDafO (a +b) / rf}8fO (a -b) 5 .
To;sf/0f If]qkmn = (a +b) (a -b) eof] .
To;}n], (a 2 - b 2 ) = (a +b) (a -b) eof] .
3_ x 2 +2x+1 sf] v08Ls/0f
ljBfyL{nfO{ ;d"xdf tLg lsl;dsf sf7sf jf bx|f] sf8{af]8{sf 6'qmf lbg] . klxnf] vfn] 6'qmf
juf{sf/ 5g\ h;nfO{ If]qkmn yfxf gePsf] ju{ cyf{t\ x 2 eGg ;lsG5 lsgls o; ju{sf]
nDafO / rf}8fO b'j} x 5g\ . bf];|f]vfn] 6'qmfx¿ cfotfsf/ 5g\ h;nfO{ If]qkmn yfxf
gePsf] cfot cyf{t\ x eGg ;lsG5 lsgls o;sf] nDafO x / rf}8fO 1 5g\ . t];|f]vfn]
6'qmfx¿ juf{sf/ 5g\ h;sf nDafO / rf}8fO b'j} 1 5 cyf{t\ If]qkmn 1 ju{ PsfO 5 .
ljBfyL{nfO{ tL 6'qmfx¿ ;d"xdf v]Ng lbO{ lgDglnlvt k|Zgsf cfwf/df sfd ug{ nufpg] M
s] ltdLx¿ oL 6'qmfx¿ ldnfP/ oLeGbf klg 7"nf ju{ agfpg ;S5f} <
ljBfyL{n] lgDgfg';f/sf] ] ju{ lgdf{0f ug] { 5g\ .
x 2
a
x 1
x+1
b
x 2 x 1
x
x+1
tL ju{x¿sf nDafO, rf}8fO / If]qkmnsf] ;DaGwaf/] 5nkmn u/fp―b} v08Ls/0f /
u'0fgv08sf] wf/0ff ljBfyL{nfO{ g} vf]hsf] dfWodaf6 lgdf{0f ug{ nufpg] .
b
a
75