Question

Fatore as expressões :
a) 8a²-40a³ = 

b) x² + 10x + 25 =

c) am²-bm² + cm³ = 

d) a²-b² - 2abc + c² = 

Answer 1

a) $8a^2-40a^3=8a^2(1-5a)$

b) $x^2+10x+25=x^2+2x\cdot5+5^2=(x+5)^2$

c) $am^2-bm^2+cm^3=m^2(a-b+cm)$

d) $a^2b^2-2abc+c^2=(ab)^2-2(ab)c+c^2=(ab-c)^2$