Question

(4x-1)(4x-1) - (3+4x)(3-4x)= dla x= 1/2

Answer 1

(4x-1)(4z-1)-(3+4x)(3-4x)

(4* 1/2 -1)(4* 1/2 -1)-(3+4* 1/2))3-4 1/2)

1*1-(3+2)*(3-2)

1-9-4= -12

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