Bonsoir je doit développé :
A = (2x + 1) ^ - (3x - 4)^
B = ( x + 1) ( 6 - 4x) + ( 8 + x) ( 8 - x)
C = ( 4 - 9x)^
D = ( 3x - 2) ( x + 7)
Merci pour votre aide
A = (2x + 1) ^ - (3x - 4)^
B = ( x + 1) ( 6 - 4x) + ( 8 + x) ( 8 - x)
C = ( 4 - 9x)^
D = ( 3x - 2) ( x + 7)
Merci pour votre aide
More Questions From This User See All
Lista de comentários
Verified answer
Bonsoir,A = (2x+1)²-(3x-4)² = (4x²+4x+1)-(9x²-24x+16) = 4x²+4x+1-9x²+24x-16 = -5x²+28x-15
B = (x+1)(6-4x)+(8+x)(8-x) = (6x-4x²+6-4x)+(8²-x²) = 6x-4x²+6-4x+64-x² = -5x²+2x+70
C = (4-9x)² = 16-72x+81x²
D = (3x-2)(x+7) = 3x²+21x-2x-14 = 3x²+19x-14
C=16+81x²
B=3x²+2x+70