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blondinia [14]
3 years ago
7

(2x+1)^2-2(2x^2-1) Simplify

Mathematics
1 answer:
Iteru [2.4K]3 years ago
8 0

The answer is 4x+3 because thats how the mafia works

Let's simplify step-by-step.

(2x+1)2−2(2x2−1)

Distribute:

=4x2+4x+1+(−2)(2x2)+(−2)(−1)

=4x2+4x+1+−4x2+2

Combine Like Terms:

=4x2+4x+1+−4x2+2

=(4x2+−4x2)+(4x)+(1+2)

=4x+3

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ruslelena [56]
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7 0
2 years ago
Mountains are often measured by the distance they rise above sea level. Mount Everest Washington rises more than 1 1/10 miles ab
erastova [34]

Answer:

Mount Everest rise  5\frac{1}{2}\ miles  above sea level.

Step-by-step explanation:

Given:

Mountains are often measured by the distance they rise above sea level.

Mount Washington rises more than 1\frac{1}{10}  miles above sea level.

Mount Everest rises about 5 times as high.

Now, to find the miles above sea level is Mount Everest.

So, the miles of Mount Washington rise above sea level = 1\frac{1}{10} =\frac{11}{10}\ miles.

And, Mount Everest is 5 times high of Mount Washington:

Now, to get the miles above sea level is Mount Everest rise we multiply 5 by the miles of Mount Washington rise above sea level:

5\times \frac{11}{10} \\\\=\frac{55}{10} \\\\On\ simplifying:\\\\=\frac{11}{2} \\\\=5\frac{1}{2}\ miles.

Therefore, Mount Everest rise 5\frac{1}{2}\ miles above sea level.

4 0
3 years ago
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Andrew [12]

Answer:

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7 0
2 years ago
Y is directly proportional to x and k is a constant. Which equation
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7 0
3 years ago
Read 2 more answers
Given two sides with lengths 34 and 14, which of these lengths would NOT work for the third side of a triangle? 18, 34, 44, 22,
Bas_tet [7]
Two sides are 34 and 14.

The third side can't be longer than (34 + 14) = 48, because the 34 and the 14
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The third side also can't be shorter than 20, because the 20 and the 14 together
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So 18 doesn't work. (18 + 14) = 32 ... they couldn't cover the 34 .
7 0
2 years ago
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