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a fost răspuns

Calculati:
a)25x^3 :(15x+25x-35x)
b)(4x+1)^2 +(4x-4)(2x+3)+(x+3)^2 (trebuie tinut cont de oridinea efectuarii ecuatiilor)
c)5-9y^2 (trebuie descompus in factori)
d)(2√5-6)^2 -(√2+3)(√2-3)+(3+√5)^2
e)(x-3)(x+3)(x^2 +9)(x^4 +81)
f)(2√2 -3)^2 -3(3√2 -4)(3√2 +4)+10(√2 +1)^2
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