Question

$\frac{3}{4}a - \frac{1}{2}a = \frac{3 - 2}{4} \times a \times \frac{1}{4}a$
resolver ........​

Answer 1

$\frac{3}{4}a - \frac{1}{2}a = \frac{3 - 2}{4} \times a \times a \frac{1}{4}a \\ \frac{1}{4}a = \frac{1}{4}a \times \frac{1}{4}a \\ \frac{a}{4} = \frac{a {}^{2} }{16}$

$16a = 4a {}^{2} \\ 4a = a {}^{2} \\ 4a - a {}^{2} = 0 \\ a \times (4 - a) = 0 \\a = 0 \\ 4 - a = 0$

a=0

a=4