Question

cele tăiate trebuie rezolvate dau coroana vreau cu tot cu rezolvări

Answer 1

1.
a)1+2x+x^2
b)9-6x+x^2
c)a^2x^2 + 2ax^3 + x^4
d)4a^2 - 12ay^2 + 9y^4
e)16x^4 + 40x^3y + 25x^2y^2
f)9a^4/4 + 3a^2x^3 + x^6
g)x^2/25 - 2axy + 25a^2y^2
h)9x^2 + 6rad2x + 2

2.
a)4x
b)6a
c)x^2
d)x^4
e)-70x+25
f)9x^2

4.
a)49-a^2
b)9-25x^2
c)x^2-12
d)16-9x^4y^2
e)4-a^4b^4
f)9x^2/25 - 1