Question

desfaceti paranteza
$(x^{2} -2x)^{2}$

Answer 1

$(x {}^{2} - 2x) {}^{2}$

$(x { }^{2} ) {}^{2} - 2x {}^{2} \times 2x + (2x) {}^{2}$

$(x {}^{2} ) {}^{2} =x {}^{4}$

$- 2x {}^{2} \times 2x$

$- 4x {}^{2} \times x {}^{1} = - 4x {}^{3}$

$(2x) {}^{2} \times {}^{2} = 4x { }^{2}$

$x {}^{4 } - 4x {}^{3} + x4 {}^{2}$