Question

Desenvolva as expressões a seguir:

F)
$(1 - \frac{2}{3}x) {}^{2} =$
G)
$(2 - \frac{3}{4} a {}^{3} b {}^{2} c) {}^{2} =$
j)
$( \frac{5}{4} a - \frac{4}{5} b) {}^{2} =$
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Answer 1

F)

$1 {}^{2} - 2 \times 1 \times \frac{2}{3} x + ( \frac{2}{3} x) {}^{2}$

$1 - \frac{4}{3} x + \frac{4}{9} x {}^{2}$

G)

$2 {}^{2} - 2 \times 2 \times \frac{3}{4} a {}^{3} b {}^{2} c + ( \frac{3}{4} a {}^{3} b {}^{2} c) {}^{2}$

$4 - 3a {}^{3} b {}^{2} c + \frac{9}{16} a {}^{6} b {}^{4} c {}^{2}$

J)

$( \frac{5}{4} a ){}^{2} - 2 \times \frac{5}{4} a \times \frac{4}{5} b + ( \frac{4}{5}b ) {}^{2}$

$\frac{25}{16} a {}^{2} - 2ab + \frac{16}{25} b {}^{2}$

Espero Que Tenha Ajudado...