Find the difference and simplify.

Mathematics

1 answer:

Murrr4er [49]3 years ago

6 0

Step-by-step explanation:

$\frac{x + 1}{x - 4} - \frac{x + 3}{x + 2} \\ \frac{(x + 1)(x + 2)}{(x - 4)(x + 2)} - \frac{(x + 3)(x - 4)}{(x + 2)(x - 4)} \\ \frac{ {x}^{2} + 3x + 2 }{(x + 2)(x - 4)} - \frac{ {x}^{2} - x - 12 }{(x + 2)(x - 4)} \\ \frac{( {x}^{2} + 3x + 2) - ( {x}^{2} - x - 12)}{(x + 2)(x - 4)} \\ \frac{ {x}^{2} + 3x + 2 - {x}^{2} + x + 12}{(x + 2)(x - 4)} \\ \frac{4x + 14}{(x + 2)(x - 4)} \\ \frac{2(2x + 7)}{(x + 2)(x - 4)}$

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Multiply or divide as indicated. <br><br> x 2 • x 5

WARRIOR [948]

Hi there!

${x}^{2} \times {x}^{5} = x {}^{2 + 5} = {x}^{7}$

We can also write is out entirely.
${x}^{2} = x \times x$
${x}^{5} = x \times x \times x \times x \times x$
${x}^{2} \times {x}^{5} = \\ (x \times x ) \times (x \times x \times x \times x \times x) = \\ x \times x \times x \times x \times x \times x \times x = \\ {x}^{7}$

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3 years ago

Solve the system of equations using the substitution method. 2x+8y=4 x=−3y+5

goldenfox [79]

Since x=-3y+5, substitute x for -3y+5.

2(-3y+5)+8y=4

Distribute.

-6y+10+8y= 4

2y+10= 4

Subtract 10 on both sides.

2y=-6

Divide by 2.

y=-3

Plug in y=-3.

x=-3(-3)+5
x= 9+5
x=14

(14,-3)

We can check this.

2(14)+8(-3)=4
28-24=4
4=4 <== this works

I hope this helps!
~kaikers

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4 years ago

Someone please explain I have zero clue how to answer this!

UkoKoshka [18]

Answer:

x=62

Step-by-step explanation:

152-90(because of the right angle)

the 28 is a red herring

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3 years ago

5-star rating and brainiest

Lelu [443]

Answer:

Step-by-step explanation:

What to do??

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4 years ago

Read 2 more answers

PLEASE HELP ASAP THERE ARE 20 POINTS ON THE LINE! Sierra has to pay 7% taxes on her purchase at IKEA. If the tax is $38.36, what

Dominik [7]

Answer:

$31.36

Step-by-step explanation:

If she has $38.36 and you subtract 7 you would get the answer $31.36. I hope I helpped (◡ ω ◡)

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3 years ago