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Exercice 2: Développer et réduire les expressions suivantes
Q(x) = (2x - 11)²
Y(x) = (4x + 5) x 2x
Z(x) = (3-4x) (3 + 2x)
T(x) = (6x + 3)(x - 2)
H(x) = (4x + 4) (4x4)
R(x) = (3x+8)².
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INEQUATION

Bonjour,

Développer:

Q(x) = (2x - 11)²= 4x-22x-22x+121= 4x²-44x+121

Y(x) = (4x + 5)  2x= 8x²+10x

Z(x) = (3-4x) (3 + 2x)= 9-12x+6x-8x²= - 8x²-6x+9

T(x) = (6x + 3)(x - 2)= 6x²+3x-12x-6= 6x²-9x-6

H(x) = (4x + 4) (4x-4)= 16x²+16x-16x+16= 16x²-16

R(x) = (3x+8)²= 9x²+24x+24x+64= 9x²+48x+64