Question

foloseste asociativitatea si comutativitatea inmultirii pentru a efectua cat mai simplu:
a)(√2-1)(√3+√2)(√2+1)
b)(3+√2)(√2-3)(2√2-1)
c)(x-2y)(x²+4y²)(x+2y)
d)(a-3b)(a²+9b²)(a+3b)
e)(2a+b)(b²+4a²)(2a-b)
f)(2√3-1)(3√2+1)(2√3+1)(3√2-1)

Answer 1

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