Steply

Parts of 3xy + 2x - 5y - 1

Step by step, with the reason for every step · Parts of an expression · Algebra 1

Step by step

The question

Question: name the terms, the coefficients and the constant of 3xy + 2x − 5y − 1.

3xy + 2x − 5y − 1

1 Split into terms

Terms are the parts between the + and − signs.

Each sign stays with the term after it.

So the terms are 3xy, 2x, −5y and −1.

= terms: 3xy, 2x, −5y, −1

Careful!

The minus sign goes with the term.

It is −1, not 1.

Careful: not constant 1 ✗

2 Name each part

A coefficient is the number in front of a letter: 3 for xy, 2 for x and −5 for y.

A constant has no letter: −1.

= coefficients: 3, 2, −5 constant: −1

3 Check

Let's check: put the terms back together.

3xy plus 2x plus −5y plus −1.

Adding a negative is taking away.

We get 3xy + 2x − 5y − 1 again.

So the answer is right!

3xy + 2x + (−5y) + (−1) = 3xy + 2x − 5y − 1

Let's look back.

First: split into terms.

Then: name each part.

Last: check.

Answer
= coefficients: 3, 2, −5 constant: −1

Your turn

Try this one yourself, then check:

Name the terms, the coefficients and the constant of 10ab + 6a − 5b − 4
Show the answer
coefficients 10, 6, −5; constant −4

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