Question

Fatore os polinomios
a) x²+10x+25
b) a²-14a+49
c) x²-1
d) 4x²-81y²

Answer 1

x² +10x +25  =  (x+5) (x+5)

a² -14a +49 = (a-7) (a-7)

x²-1= (x+1) (x-1)

4x² -81y² = ( 2x -9y) (2x+9y)