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Vikentia [17]
3 years ago
14

What is x^2 + 4x-3 =0 , solve by completing the square.

Mathematics
1 answer:
zhenek [66]3 years ago
5 0
The answer is x = -2 +- sqrt 7
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Which will help you answer, "To what power must a student raise the number 5 to have an answer of 625?"
Ymorist [56]

Answer:

4th power

5x5x5x5 = 625

Step-by-step explanation:

4 0
3 years ago
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sashaice [31]

Answer: What is this free?

5 0
2 years ago
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Solve for x: 2(x 3)2 − 4 = 0 Round your answer to the nearest hundredth. X = 4. 41, 1. 59 x = 1. 34, 5. 24 x = −1. 34, −5. 24 x
gladu [14]

The two values when the provided quadratic equation is solved for the x are -4.41 and -1.59 to the nearest hundredth.

<h3>What is a quadratic equation?</h3>

A quadratic equation is the equation in which the unknown variable is one and the highest power of the unknown variable is two.

The standard form of the quadratic equation is,

ax^2+bx+c=0

Here, (<em>a,b,c</em>) are the real numbers and <em>x </em>is the variable.

To find the value of x, the following formula is used,

x=\dfrac{-b\pm\sqrt{b^2-4ac}}{2a}

The given equation is,

2(x+ 3)^2 - 4 = 0

To solve this equation, we need to apply some mathematical operations over it. Let's start with opening the brackets.

2(x+ 3)^2 - 4 = 0\\2(x^2+6x+9)-4=0\\2x^2+12x+14-4\\2x^2+12x+12=0\\x^2+6x+7=0

On comparing with standard equation we get,

a=1, b=6, c=7

Put this values in the above formula,

x=\dfrac{-(6)\pm\sqrt{(6)^2-4(1)(7)}}{2(1)}\\x=\dfrac{-(6)\pm\sqrt{(6)^2-4(1)(7)}}{2(1)}\\x=-4.41,-1.59

Hence, the two values when the provided quadratic equation is solved for the x are -4.41 and -1.59 to the nearest hundredth.

Learn more about the quadratic equation here;

brainly.com/question/1214333

5 0
2 years ago
Can you answer this step by step? 31,398 ÷ 65 =
Doss [256]

Answer:

483 with a remainder of 3

Step-by-step explanation:

                      4       8       3

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

6 5    | 3 1 3 9 8

                       2 6 0

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

                              5 3 9  

                               5 2 0

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

                                        1 9 8

                                        1 9 5

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

                                                       3

Hope I explain myself :/

5 0
3 years ago
If p=9 and q=30, evaluate the following expression:p−q/3​
nadezda [96]

Answer:

-1

Step-by-step explanation:

6 0
3 years ago
Read 2 more answers
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