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Vesna [10]
3 years ago
9

-14cd-2c²d²+15cd+9c²d²-15cd need help

Mathematics
2 answers:
aliya0001 [1]3 years ago
7 0
Combine like terms.

-14cd + 15cd - 15cd = -14cd
-2c²d² + 9c²d² = 7c²d²

7c²d² - 14cd is your answer

hope this helps
sladkih [1.3K]3 years ago
3 0
<span>-14cd - 2c²d² + 15cd+9c²d²-15cd
</span><span>= cd(-14 + 15 - 15)  + c²d²(-2 + 9)
= </span>7c²d² -  14cd

Hope it helps
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2 years ago
Your friend Mel says he has an easier way to solve this problem. Here are the first steps in his method.
damaskus [11]

Simplifying

2x2 + 6x + 4 = 24

Reorder the terms:

4 + 6x + 2x2 = 24

Solving

4 + 6x + 2x2 = 24

Solving for variable 'x'.

Reorder the terms:

4 + -24 + 6x + 2x2 = 24 + -24

Combine like terms: 4 + -24 = -20

-20 + 6x + 2x2 = 24 + -24

Combine like terms: 24 + -24 = 0

-20 + 6x + 2x2 = 0

Factor out the Greatest Common Factor (GCF), '2'.

2(-10 + 3x + x2) = 0

Factor a trinomial.

2((-5 + -1x)(2 + -1x)) = 0

Ignore the factor 2.

Subproblem 1

Set the factor '(-5 + -1x)' equal to zero and attempt to solve:

Simplifying

-5 + -1x = 0

Solving

-5 + -1x = 0

Move all terms containing x to the left, all other terms to the right.

Add '5' to each side of the equation.

-5 + 5 + -1x = 0 + 5

Combine like terms: -5 + 5 = 0

0 + -1x = 0 + 5

-1x = 0 + 5

Combine like terms: 0 + 5 = 5

-1x = 5

Divide each side by '-1'.

x = -5

Simplifying

x = -5

4 0
3 years ago
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faust18 [17]

Answer:

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3 0
3 years ago
What is the y-intercept? y = -1/3x + 4
Arte-miy333 [17]
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4 0
3 years ago
Read 2 more answers
Please help! Which expression is equal to..?
Alenkasestr [34]

Answer:

A

Step-by-step explanation:

Before we can add the 2 fractions we require them to have a common denominator.

Multiply the numerator/ denominator of the first fraction by x

Multiply the numerator/ denominator of the second fraction by (x + 3)

= \frac{3x(x)}{x(x+3)} + \frac{(x-2)(x+3)}{x(x+3)}

Now simplify the numerator, leaving the denominator

= \frac{3x^2+x^2+x-6}{x(x+3)}

= \frac{4x^2+x-6}{x(x+3)} → A

5 0
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