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2 years ago

I dont know how to delete a question

Mathematics

2 answers:

Law Incorporation [45]2 years ago

8 0

Answer:

contact brainly support. instead of saying u don't know how maybe ask next time? lol

Step-by-step explanation:

hope this helps!

~mina

pav-90 [236]2 years ago

7 0

Answer:

use the trash can icon

Step-by-step explanation:I’m pretty sure it’s somewhere you can also get it baNed.

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2 years ago

Hurry 50 points for correct answer

Ad libitum [116K]

Answer: "7 is a solution to the original equation. The value –1 is an extraneous solution."

Step-by-step explanation:

The equation $x=\sqrt{6x+7}$ can be solved by squaring both sides:

$x^2 = 6x + 7\\\\x^2 - 6x - 7 = 0\\\\(x-7)(x+1) = 0$

We can see that -1 and 7 are solutions, but make sure they are not extraneous by substituting them in the original equation:

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The square root of 49 equals 7, but the square root of -1 is an imaginary number.

The correct choice is "7 is a solution to the original equation. The value –1 is an extraneous solution."

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2 years ago

1. Solve the equation using the zero-product property. -x(5x – 4) = 0

Oxana [17]

Answer:

x = 0, 4/5

Step-by-step explanation:

The zero-product property states that if the product of a and b is zero, then either a = 0, b = 0, or both terms equal zero

Here our a term is -x and our b term is (5x - 4)
Setting each term equal to zero and solving for x we get
-x = 0 → x = 0
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