Question

descompunerii in factori:
a)25 x pătrat -4
b)x pătrat -81
c) 16 x pătrat -4
d) x pătrat -3

Answer 1

a) (5x-2)(5x+2)
b) (x-9)(x+9)
c) (4x-2)(4x+2)
d) $(x- \sqrt{3} )(x+ \sqrt{3)}$