Répondre :
bonjour
B=2(x+5)²+(3-x)²
= 2 ( x² + 10 x + 25 ) + ( 9 - 6 x + x² )
= 2 x² + 20 x + 50 + 9 - 6 x + x²
= 3 x² + 14 x + 59
Bonjour,
B = 2(x+5)²+(3-x)²
= 2(x²+10x+25)+(9-6x+x²)
= 2x²+20x+50+9-6x+x²
= 3x²+14x+59
bonjour
B=2(x+5)²+(3-x)²
= 2 ( x² + 10 x + 25 ) + ( 9 - 6 x + x² )
= 2 x² + 20 x + 50 + 9 - 6 x + x²
= 3 x² + 14 x + 59
Bonjour,
B = 2(x+5)²+(3-x)²
= 2(x²+10x+25)+(9-6x+x²)
= 2x²+20x+50+9-6x+x²
= 3x²+14x+59