Sagot :
1)
A= 5-(2 y-4)
A= 5-(2 y-4) = 5-2y+4
A= 5-(2 y-4) = 5-2y+4 = 5+4-2y
A= 5-(2 y-4) = 5-2y+4 = 5+4-2y = 9-2y
A= 5-(2 y-4) = 5-2y+4 = 5+4-2y = 9-2yB= (-2a+1)+(a-1)
A= 5-(2 y-4) = 5-2y+4 = 5+4-2y = 9-2yB= (-2a+1)+(a-1) = -2a+1+a-1
A= 5-(2 y-4) = 5-2y+4 = 5+4-2y = 9-2yB= (-2a+1)+(a-1) = -2a+1+a-1 = -2a+a+1-1
A= 5-(2 y-4) = 5-2y+4 = 5+4-2y = 9-2yB= (-2a+1)+(a-1) = -2a+1+a-1 = -2a+a+1-1 = a
A= 5-(2 y-4) = 5-2y+4 = 5+4-2y = 9-2yB= (-2a+1)+(a-1) = -2a+1+a-1 = -2a+a+1-1 = aC= (-2a+1)-(a-1)
A= 5-(2 y-4) = 5-2y+4 = 5+4-2y = 9-2yB= (-2a+1)+(a-1) = -2a+1+a-1 = -2a+a+1-1 = aC= (-2a+1)-(a-1) = -2a+1-a+1
A= 5-(2 y-4) = 5-2y+4 = 5+4-2y = 9-2yB= (-2a+1)+(a-1) = -2a+1+a-1 = -2a+a+1-1 = aC= (-2a+1)-(a-1) = -2a+1-a+1 = -2a-a+1+1
A= 5-(2 y-4) = 5-2y+4 = 5+4-2y = 9-2yB= (-2a+1)+(a-1) = -2a+1+a-1 = -2a+a+1-1 = aC= (-2a+1)-(a-1) = -2a+1-a+1 = -2a-a+1+1 = -3a+2
A= 5-(2 y-4) = 5-2y+4 = 5+4-2y = 9-2yB= (-2a+1)+(a-1) = -2a+1+a-1 = -2a+a+1-1 = aC= (-2a+1)-(a-1) = -2a+1-a+1 = -2a-a+1+1 = -3a+2D= -(-2a+1)-(a-1)
A= 5-(2 y-4) = 5-2y+4 = 5+4-2y = 9-2yB= (-2a+1)+(a-1) = -2a+1+a-1 = -2a+a+1-1 = aC= (-2a+1)-(a-1) = -2a+1-a+1 = -2a-a+1+1 = -3a+2D= -(-2a+1)-(a-1) = 2a-1-a+1
A= 5-(2 y-4) = 5-2y+4 = 5+4-2y = 9-2yB= (-2a+1)+(a-1) = -2a+1+a-1 = -2a+a+1-1 = aC= (-2a+1)-(a-1) = -2a+1-a+1 = -2a-a+1+1 = -3a+2D= -(-2a+1)-(a-1) = 2a-1-a+1 = 2a-a-1+1
A= 5-(2 y-4) = 5-2y+4 = 5+4-2y = 9-2yB= (-2a+1)+(a-1) = -2a+1+a-1 = -2a+a+1-1 = aC= (-2a+1)-(a-1) = -2a+1-a+1 = -2a-a+1+1 = -3a+2D= -(-2a+1)-(a-1) = 2a-1-a+1 = 2a-a-1+1 = a
2)
2)E= 4(x+1)
2)E= 4(x+1) = 4x+4
2)E= 4(x+1) = 4x+4F= 5(2-3)
2)E= 4(x+1) = 4x+4F= 5(2-3) = 10-15
2)E= 4(x+1) = 4x+4F= 5(2-3) = 10-15 = -5
2)E= 4(x+1) = 4x+4F= 5(2-3) = 10-15 = -5G = y(5+2y)
2)E= 4(x+1) = 4x+4F= 5(2-3) = 10-15 = -5G = y(5+2y) [tex] = 5y + {2y}^{2} [/tex]
2)E= 4(x+1) = 4x+4F= 5(2-3) = 10-15 = -5G = y(5+2y) [tex] = 5y + {2y}^{2} [/tex] H= 2p(6-3p)
[tex] = 12p - {5p}^{2} [/tex]