Which can be used to expand the expression below?
6✔ 81214
Which expression is equivalent to –2(5x – 0.75)?
Which expression is equivalent to ?
Question text not available
Answer
Which expressions are equivalent to ? Check all that apply.
Are the expressions –0.5(3x + 5) and –1.5x + 2.5 equivalent? Explain why or why not.
Using the distributive property to expand the first expression, you would get -1.5x - 2.5. Since the constant term does not have the same sign as the second expression, the two expressions are not equivalent. Also, if you substitute in a value for x and evaluate each expression, the values will not be equal.
What is –9.2(8x – 4) + 0.7(2 + 6.3x) simplified?
Which expressions are equivalent to ? Check all that apply.
What is an equivalent expression for 1.5(3x + 4) + 0.25(6x + 8)?
✔ 68910.5
Compare and contrast expanding and simplifying algebraic expressions with simplifying numeric expressions. For example, compare simplifying 3(x – 2) + (x – 1) with 3(5 – 2) + (5 – 1).
With algebraic expressions, you can’t add and subtract any terms like you can add and subtract numbers. Terms must be like terms in order to combine them. So, you can’t always simplify an algebraic expression by following the order of operations. You have to use the distributive property to rewrite the expression and then combine like terms to simplify. With numeric expressions, you can either simplify inside the parentheses first or use the distributive property first.
Did you find these answers helpful?
TRY EDGENUITY HACKS
- Auto Complete Exams
- Auto Complete Assignments
- Skip Videos Instantly