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2 years ago

Which of the following Is a binomial?A. 7x+21, B. 3/x, C. 8x^2+6x+5, D. 19x^4

Mathematics

1 answer:

zheka24 [161]2 years ago

3 0

Answer: a

Step-by-step explanation:

a is a binomial

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2 years ago

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PLEASE SOLVE AND CHECK. SHOW COMPLETE SOLUTION

Alex17521 [72]

Solution:

$\sqrt{4x + 13} = x + 2$

First square both sides.

$= > ( \sqrt{4x + 13} ) ^{2} = (x + 2) ^{2}$

Now, square root and square gets cancel out in the LHS. And in the RHS, apply the identity: (a + b)² = a² + 2ab + b².

$= > 4x + 13 = {(x)}^{2} + 2 \times x \times 2 + (2) ^{2} \\ = > 4x + 13 = {x}^{2} + 4x + 4$

Now, transpose 4x and 4 to LHS.

$= > 4x - 4x + 13 - 4 = {x}^{2} \\$

Now, do the addition and subtraction.

$= > {x}^{2} = 9 \\ = > x = \sqrt{9} \\ = > x = ±3$

Answer:

x = ± 3

Hope you could understand.

If you have any query, feel free to ask.

3 0

2 years ago

The sum of two consecutive integers is 77. Find the integers.

SIZIF [17.4K]

Answer:

38 and 39

Step-by-step explanation:

Since the two integers are consecutive, then one is one larger than the other. Therefore, lets call them x and x+1. We can now set up the following equation:

x+(x+1)=77

2x+1=77

2x=76

x=38

x+1=39

Hope this helps!

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3 years ago

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Which of the following Is a binomial?A. 7x+21, B. 3/x, C. 8x^2+6x+5, D. 19x^4​

Which of the following Is a binomial?A. 7x+21, B. 3/x, C. 8x^2+6x+5, D. 19x^4