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krok68 [10]
3 years ago
12

What are the solutions to 2x^2+7y=4 ? Select all that apply.

Mathematics
1 answer:
liberstina [14]3 years ago
7 0

Answer:

x = -1/2 , 4

Step-by-step explanation:

1) If any individual factor on the left side of the equation is equal to 0, the entire expression will be equal to 0.

2x+1=0

x−4=0

2) Set the first factor equal to 0.

2x+1=0

3) Subtract 1 from both sides of the equation.

2x=−1

4) Divide each term by 2 and simplify.

2x/2= −1/2

5) Cancel the common factor of 2.

x= −1/2

6) Move the negative in front of the fraction.

x = −1/2

7) Set the next factor equal to 0 and solve.

x=4

8) The final solution is all the values that make

(2x+1)(x−4) = 0 true.

9) x = −1/2 , 4

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I'll answer problem 9 to get you started

<h3>Answer: Choice (2) 3x-1 = 2x+3</h3>

===============================================

Explanation:

We will plug x = 7 into each equation or inequality given to us. Then we determine if we get a true statement or not.

----------------

Let's start with choice (1)

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Move onto choice (2)

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Since we found the answer, we can stop here. But let's keep going to check the others.

choice (3)

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-----------------

Now onto choice (4)

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