Question

Guys, please help me with problem.

Answer 1

`\boxed{\bold{-25}}`

Explanation:

Remove parenthesis: (a) = a

`\bold{(-5^2+10^2)/(-2\cdot \:5\cdot \:3+3^3)}`

`\bold{-5^2+10^2: \ 75}`

`\bold{(75)/(-2\cdot \:5\cdot \:3+3^3)}`

`\bold{-2\cdot \:5\cdot \:3+3^3: \ -3}`

`\bold{(75)/(-3)}`

Apply fraction rule:
`\bold{(a)/(-b)=-(a)/(b)}`

`\bold{-(75)/(3)}`

Divide
`\bold{\:(75)/(3): \ 25}`

`\bold{-25}`

Regards,

Mordancy