Question

Simplificati:

a) $\frac{x^2-8}{x^2- 4\sqrt{2}+8 }$ x∈ R/{2√2}
b)$\frac{x^2-25}{x^3-10x^2+25x}$ x∈ R/{ 0;5}
c)$\frac{a^2-5a+6}{a^2+a-6}$ a∈ R/{2;-3}

Answer 1

Singura idee pe care ti-o pot da este ca x²-8=(x-2√2)(x+2√2) si x²-25=(x+5)(x-5)