Question

valor numérico da expressão 8ax+6a² , para a=1/4 , x=1/2

Answer 1

8ax+6a²

8.1/4.1/2+6.(1/4)²

1+6/16

1+3/8

 

(8+3)/8

 

11/8

Answer 2

Simples:

$<var>8\cdot\frac14\cdot\frac12 + 6\cdot(\frac14)^2</var>$

$<var>1 + 6\cdot\frac{1}{16}</var>$

$<var>1 + \frac38 </var>$

$<var>\frac{8 + 3}{8}</var>$

$<var>\frac{11}{8}</var>$