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(x-2 )la a 4 =2la a 9

Răspuns :

(x-2)⁴=2^9
x⁴-4x³×(-2)+6x²×(-2)²-4x×(-2)³+(-2)⁴=2^9
x⁴+8x³+6x²×4-4x×(-8)-16=512
x⁴+8x³+24x²+32x-16=512
x⁴+8x³+24x²+32x-16-512=0
x⁴+8x³+24x²+32x-528=0
mai departe nu știu