Question

10 x²-7290
me ajudem ​

Answer 1

Explicação passo-a-passo:

$\sf 10x^2-7290=0$

$\sf 10x^2=7290$

$\sf x^2=\dfrac{7290}{10}$

$\sf x^2=729$

$\sf x=\pm\sqrt{729}$

• $\sf \red{x'=27}$

• $\sf \red{x"=-27}$