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3 years ago

Solve equations using inverse operations HELP NOW!!

Mathematics

2 answers:

aev [14]3 years ago

4 0

Algebra

The inverse of -9n is dividing by -9.

$n = - 5$

Levart [38]3 years ago

4 0

Answer:

n=−5

Step-by-step explanation:

what we have −9n=45

we divide -9 on both sides:

−9n/-9 =45/-9

n=−5

Hope this is right!

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Step-by-step explanation:

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3 years ago

Add the sum of 296 and 173 to their difference

Digiron [165]

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3 years ago

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PtichkaEL [24]

Answer:

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Step-by-step explanation:

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3 years ago

How to factor x^3 - 4x^2 - 9x + 36 by grouping

const2013 [10]

Answer:

(x-4) (x-3) (x+3)

Step-by-step explanation:

x^3 - 4x^2 - 9x + 36

Make 2 groups

x^3 - 4x^2 - 9x + 36

We can factor out x^2 from the first group and -9 from the second group

x^2 (x-4) - 9(x-4)

Now factor out (x-4)

(x-4) (x^2 -9)

This may be an answer choice but we can still factor

(x^2 -9) is the difference of squares

(x^2-9) = (x-3) (x+3)

Replacing this

(x-4) (x-3) (x+3)

6 0

4 years ago

Read 2 more answers

Helppppp!!! I don’t know what the answer is and I’m taking the test right now....

Darya [45]

Answer:

Step-by-step explanation:

Hint :

$\frac{−b± \sqrt{{b}^{2} −4(ac} )}{2a}$

Simplify :

${x}^{2} +8x+16=2$

${x}^{2} +8x+16−2=0$

${x}^{2} +8x+14=0$

<h3> $\frac{ - 8± \sqrt{ {8}^{2} - 4(1 \times 14) } }{2 \times 1}$ </h3><h3> $x = \frac{ - 8±2 \sqrt{2} }{2 \times 1}$ </h3><h3> $x = \frac{- 8±2 \sqrt{2}}{2}$ </h3>

$x = - 4± \sqrt{2}$

<h3>Hope it is helpful....</h3>

4 0

3 years ago