Question

Descompuneti in factori:
a) 25x∧3-5x∧2=
b) x∧2+5x+6=
c) x∧2-10x=25=
∧= la puterea ...

Answer 1

Succes in continuare!

Answer 2

Răspuns

Explicație pas cu pas:

a)  25 x³ - 5 x² = 5 x² ( 5 x - 1 )

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b)   x² + 5 x + 6 = ( x + 2 ) ( x + 3 )

= x² + 2 x + 3 x + 6 =

= x ( x + 2 ) + 3 ( x + 2 ) =

= ( x + 2 ) ( x + 3 )

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c)  

x² - 10 x + 25 = ( x - 5 )² = ( x - 5 ) ( x - 5 )