Think of PEMDAS, or Please Excuse My Dear Aunt Sally. Which is Parentheses, Exponents, Multiplication and Division, and Addition and Subtraction in that order.
Answer:
-5x^2-2x
Step-by-step explanation:
When distributing, you multiply the term outside the brackets to all the terms in brackets.
If the term outside the bracket is negative, then when distributing/opening the brackets, the signs of the terms changes.
So in this prob. -x would multiply to both +5x and +2
-x*5x+-x*2
∴-5x^2-2x
<em>Answer:</em>
<em>The net speed per 24 hours is 5 - 4 = 1 foot. </em>
<em>1 ft / 24 hrs = 16 ft / x hrs </em>
<em>
</em>
<em>16 * 24 hrs = 16 days (384 hrs)
</em>
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Not sure what the measure of ____ is, can you specify?
<h3>First part of the problem:</h3><h3>-y - 4 = 4x</h3><h3> + 4 + 4</h3><h3>-y + 0 = 4x + 4</h3><h3> -y = 4x + 4</h3><h3 />
Hope this helps!
