a⁴ + 4-এর উৎপাদক কী কী?
ক) (a 2 -2a+2)(a 2 -2a-2) খ) (a 2 +2a+2)(a 2 -2a+2) গ) (a 2 +2a-2)(a 2 -2a+2) ঘ) (a 2 +2a+2)(a 2 +2a+2)
ক) (a 2 -2a+2)(a 2 -2a-2) খ) (a 2 +2a+2)(a 2 -2a+2) গ) (a 2 +2a-2)(a 2 -2a+2) ঘ) (a 2 +2a+2)(a 2 +2a+2)
ক) (2x+3)(x+1) খ) (2x+3)(x-1) গ) (2x-3)(x-1) ঘ) (2x-3)(x+1)