Sagot :
a)x*y+x*z
=x(y+z)
b) a*(b+4)+3*a
=a(b+7)
c) 5*(2t+1)+(2t+1)*(t-5)
=(2t+1)(t)
d)5x²+6x
=x(5x+6)
e) (x+1)² -3 (x+1)
=(x+1)(x-2)
=x(y+z)
b) a*(b+4)+3*a
=a(b+7)
c) 5*(2t+1)+(2t+1)*(t-5)
=(2t+1)(t)
d)5x²+6x
=x(5x+6)
e) (x+1)² -3 (x+1)
=(x+1)(x-2)
a) x(y+z)
b) a(b+4+3)=a(b+7)
c) (2t+1)(5+t-5)=(2t+1)t
d) x(5x+6)
e) (x+1)(x+1)-3=(x+1)(x+1-3)=(x+1)(x-2)
b) a(b+4+3)=a(b+7)
c) (2t+1)(5+t-5)=(2t+1)t
d) x(5x+6)
e) (x+1)(x+1)-3=(x+1)(x+1-3)=(x+1)(x-2)
