Question

-2(3²-4)-25÷(-5)What is the value of the expression above

Answer 1

We use the bodmass rule to sole the equation

According to bodmass rule

`\begin{gathered} B\longrightarrow\text{Bracket } \\ D\longrightarrow\text{Division} \\ M\longrightarrow\text{ Multiplication} \\ A\longrightarrow\text{Addition} \\ S\longrightarrow\text{Subtraction} \\ \text{The calculation is done in this order.} \end{gathered}`
`\text{Here -2(3}^2-4)-25\text{ / -5}`
`\begin{gathered} Find(25)/(-5)=-5\text{ } \\ find-2(3^2-4)=-2(9-4)=-2\ast5=-10 \\ -2(3^2-4)-(25)/(-5)=-10-(-5)=-10+5=-5 \end{gathered}`

The answer is -5.