Question

se A =x²+1/5, qual o valor de A para x=2/5?

prfv gnt eu preciso disso pra amanhããã

Answer 1

$A= x {}^{2} + \frac{1}{5}$

$\boxed{x = \frac{2}{5} }$

$A = ( \frac{2}{5} ) {}^{2} + \frac{1}{5}$

$A= \frac{2 {}^{2} }{5 {}^{2} } + \frac{1}{5}$

$A = \frac{4}{25} + \frac{1}{5}$

$A = \frac{4 + 5}{25}$

$\boxed{A = \frac{9}{25} }$

Att. YRZ