Respuesta :

Answer:

[tex]\boxed{\bold{-25}}[/tex]

Step-by-step explanation:

Remove parenthesis: (a) = a

[tex]\bold{\frac{-5^2+10^2}{-2\cdot \:5\cdot \:3+3^3}}[/tex]

[tex]\bold{-5^2+10^2: \ 75}[/tex]

[tex]\bold{\frac{75}{-2\cdot \:5\cdot \:3+3^3}}[/tex]

[tex]\bold{-2\cdot \:5\cdot \:3+3^3: \ -3}[/tex]

[tex]\bold{\frac{75}{-3}}[/tex]

Apply fraction rule: [tex]\bold{\frac{a}{-b}=-\frac{a}{b}}[/tex]

[tex]\bold{-\frac{75}{3}}[/tex]

Divide [tex]\bold{\:\frac{75}{3}: \ 25}[/tex]

[tex]\bold{-25}[/tex]

Regards,

   Mordancy