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ex 6 , B helppppp pleaseee

Ex 6 B Helppppp Pleaseee class=

Răspuns :

=x(4x²-1)+2(4x²-1) totul supra x²(2x+1)-4(2x+1)
=(x+2)(4x²-1) supra (x²-4)(2x+1)
=(x+2)(2x-1)(2x+1) supra(x-2)(x+2)(2x+1)
=2x-1 supra x-2
b) 2n-1 divide n-2
n-2 divide n-2