Question

Scrie ca produs de trei factori sumele:
${x}^{4} - {4x}^{2} + {4x}^{2}$

Answer 1

$x^4-4x^2+4x^2 = x^4 = x\cdot x\cdot x^2$

Answer 2

x^4-4x²+4x² = x²(x²-4+4) = x²*x² = x²+² = x^4

......