Verified answer

Réponse :

S=(2x-3)(5x+1)-x(x-2)

S=10x²+2x-15x-3-x²+2x

S=9x²-11x-3

T=(x+2)(3x+2)

T=3x²+2x+6x+4

T=3x²+8x+4

J=(x+2)(3x+2)(x+4)

J=(3x²+8x+4)(x+4)

J=3x³+12x²+8x²+32x+4x+16

J=3x³+20x²+36x+16

Q=(2x-3)²+(4x-5)(4x+5)

Q=4x²-12x+9+16x²-25

Q=20x²-12x-16

U=(2x+1)²+(1+4x)(5-2x)

U=4x²+4x+1+5-2x+20x-8x²

U=-4x²+22x+6

V=(2x+1)²-(x-2)²

V=4x²+4x+1-(x²-4x+4)

V=4x²+4x+1-x²+4x-4

V=3x²+8x-3