Je n'arrive vraiment pas à faire les maths... A rendre pour demain
A= 11+2(x-6)
= 11+2*x+2*(-6)
= 11+2x-12
= 2x-1
B= -3(2y-4)-2y
= -3*2y-3*(-4)-2y
= -6y+12-2y
= -4y+12
C= 7-4(8-2a)+a
= 7-4*8-4*(-2a)+a
= 7-32+8a+a
9a-25
D= (7-3x)(9x-3)
= 7*9x+7*(-3)-3x*9x-3x*(-3)
= 63x-21-27x²+9x
= 27x²+36x-21
E= (-2-3y)(4-8y)
= -2*4-2*(-3y)-3y*4-3y*(-8y)
= -8+6y-12y+24y²
= 24y²-6y-8
A = 11 + 2 ( x - 6)
= 11 + 2X - 12
= 2x -1
B= -3 (2y - 4) - 2y
= -6y + 12 - 2y
= -8 y + 12
C = -7 -4 (8 - 2a) + a
= -7 -32 + 8a + a
= -39 + 9a
D = (7 - 3x) ( 9x - 3)
= 63x -21 - 27x² + 9x
= -27x² + 72x - 21
E = (-2 - 3y) (4 - 8y)
= -8 +16y -12y +24y²
= 24y² +4y - 8
