Question

(x√2-1) ²
$(x \sqrt{2 \: } - 1) {}^{2}$


afla rezultatul folosind formula
(a-b) ²=a²-2×a×b+b².​

Answer 1

Răspuns:

$(x \sqrt{2} - 1)^{2} = 2 {x}^{2} - 2x \sqrt{2} + 1$