Answered

Merci a ce qui repondrons

factoriser au maximum

 

A(x)=25x²-(1-2x)² et B(x)=4x(1-7x)-1-7x)(3x+1)

Sagot :

A(x)=25x²-(1-2x)²
      =(5x+1-2x)(5x-1+2x)
       =(3x+1)(7x-1)

B(x)=4x(1-7x)-(1-7x)(3x+1)
      =(1-7x)(4x-3x-1)
      =(1-7x)(x-1)