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GuDViN [60]
3 years ago
13

(-7x-5x^4+5) + (7x^4 + 5 + 9 x)

Mathematics
1 answer:
aivan3 [116]3 years ago
5 0

Answer:

2x⁴ + 2x + 10

Step-by-step explanation:

Step 1: Write out expression

-7x - 5x⁴ + 5 + 7x⁴ + 5 + 9x

Step 2: Combine like terms (x⁴)

2x⁴ - 7x + 5 + 5 + 9x

Step 3: Combine like terms (x)

2x⁴ + 2x + 5 + 5

Step 4: Combine like terms (constants)

2x⁴ + 2x + 10

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wolverine [178]
B.) 30 miles

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6 0
3 years ago
Please solve for the hypotenuse of a right triangle having legs 6 and 8. *
Arturiano [62]

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10

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3 years ago
Which of the following nubers is irrational?
vichka [17]
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5 0
3 years ago
Solve each system by substitution<br>x - y=4<br>x+2y=-2​
DENIUS [597]

Answer:

<h2>x = 2 and y = -2</h2>

Step-by-step explanation:

\left\{\begin{array}{ccc}x-y=4&\text{add}\ y\ \text{to both sides}\\x+2y=-2\end{array}\right\\\\\left\{\begin{array}{ccc}x=4+y&(1)\\x+2y=-2&(2)\end{array}\right\\\\\text{substitute (1) to (2):}\\\\(4+y)+2y=-2\qquad\text{combine like terms}\\\\4+(y+2y)=-2\qquad\text{subtract 4 from both sides}\\\\3y=-6\qquad\text{divide both sides by 3}\\\\y=-2\\\\\text{put the value of}\ y\ \text{to (1):}\\\\x=4+(-2)\\\\x=2

7 0
3 years ago
What is the solution to the equation x + 8 = -3
KIM [24]

Answer:

x=5

Step-by-step explanation:

Move the 8 to the other side by subtracting by 8 on both sides:

x-8+8=-3+8

x=5

Hope this helps!

4 0
3 years ago
Read 2 more answers
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