Question

d) (3a – 7) – (4 – a) =
e) (3x + 2)3 =
f) (-8a2 - 7a + 6) - (-2a2 + a + 6) =​

Answer 1

Răspuns:

Explicație pas cu pas:

d)3a-7-4+a=4a-11

e) 9x+6

f)-8a²-7a+6+2a²-a-6=-6a²-8a=-2a(3a+4)

Answer 2

Răspuns:

d).(3a-7)-(4-a)=3a-7-4+a=4a-11

e).(3x+2)×3=9x+6

f).(-8a²-7a+6)-(-2a²+a+6)=-8a²-7a+6+2a²-a-6=-6a²-8a