How do you evaluate $(3+ 5) ^ { 2} - 2\cdot 7$ ?

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Answer 1 · 2018-03-21T06:49:59

$50$

To simplify this expression, all we need to do, is use $PEMDAS$ .

First thing we need to know is the definition of $PEMDAS$ :

$P$ - Parenthesis

$MD$ - Multiply/Divide (Left to Right)

$AS$ - Add/Subtract (Left to Right)

This is the order we must do this, from top to bottom. This process is more commonly known as the Order of Operations .

Now that we know the order of the steps we must take to solve this, this is the solution:

$(3+5)^2-2*7$

$=(8)^2-2*7$

$=64-2*7$

$=64-14$

$=50$

How do you evaluate (3+ 5) ^ { 2} - 2\cdot 7(3+ 5) ^ { 2} - 2\cdot 7?