a fost răspuns

4( 2x² -2x +5) ( 2x² - 3x +2)+9 este patrat perfect ..

Răspuns :

4(4x-2x+5)(4x-3x+2)+9= 4(2x+5)(1x+2)+9=4(2x+5)3x+9=4(2x+5)+13x=4(7x)+13x=20x:4=5x asta e raspunsul
4(4x-2x+5)(4x-3x+2)+9=
 =4(2x+5)(1x+2)+9=4(2x+5)3x+9=
=4(2x+5)+13x=
=4(7x)+13x=
=20x:4
=5x 

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