Question

3)Descompuneti in factori:
a)$3x^{2} y-24xy+48y;$
b)$18ax^{2} +24ax+8a$
c)$49 x^{2}y^{2} + 14y^{2} x+ y^{2}$

Answer 1

a)  3x²y-24xy+48y=3y(x²-8x+16)=3y(x-4)²

b) 18ax²+24ax+8a=2a(9x²+12x+4)=2a(3x+2)²

c) 49x²y²+14y²x+y²=y²(49x²+14x+1)=y²(7x+1)²