a fost răspuns

Adevarat sau fals?
a) 7 x ( a + 5) = 7  x a + 5
b) 3 x ( a + b ) = 3 x a + 24
c) (a + 1 + b) x 35 = 35 x a + 35 + 35 x b 
d) ( a + 1 ) x 5 = 5 x a + 1
e) (a + 1) X 5 = a X 5
f) 5 X ( a + 1) = 5 X a + 5

Răspuns :

a) F
b) F
c) A
d) F
e) F
f) A
Doareuask
a) F=> 7X(a +5)= 7xa +35x
b)F=>3x(a+b)=3xa +3xb
c)F=>(a+1+b)x35= ax35+ 35x +bx35
d)F=>(a+1)x5=5ax+5x
e)F=>(a+1)x5=>5ax+5x
f)F=>(a+1)5x=5xa+5x
X- reprezinta inmultirea sau este termen necunoscut?

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