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Andre45 [30]
3 years ago
15

X ^ 2 + 4x - 7 = 0 Solve using the Quadratic Formula

Mathematics
1 answer:
aalyn [17]3 years ago
8 0

There's a special case of the quadratic formula called the Shakespeare Quadratic Formula (2b or -2b) that applies when the linear coefficient is even.

x^2-2Bx + C \textrm{ has zeros }x = B \pm\sqrt{B^2 - C}

If you're planning on solving a lot of quadratic equations quickly, it's good to know.

Here we have

x^2 + 4x - 7 = 0

so

x = -2 \pm \sqrt{2^2 - -7}

x = -2 \pm \sqrt{11}

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Solve the quadratic equation by completing the square. x2+6x+7=0 First, choose the appropriate form and fill in the blanks with
kirill [66]

Answer:

x^2+6x-4=0 x^2+6x=4 x^2+6x+9=13 (x+3)(x+3)=13 x+3=+or-(13^1/2) x=-3+or-13^1/2

Step-by-step explanation:

sry if im wrong :< if im right, can i have brainliest? have a wonderful day/night :D

5 0
3 years ago
A) all values at which h has a local maximum <br> B ) all local maximum values of h
Harlamova29_29 [7]

For the given function h(x), we have:

a) at x = -2 and x = 2.

b) y = 0 and y = 3.

<h3>How to identify the maximums of function h(x)?</h3>

First, we want to get the values of x at which we have maximums. To do that, we need to see the value in the horizontal axis at where we have maximums.

By looking at the horizontal axis, we can see that the maximums are at:

x = -2 and at x = 2.

Now we want to get the maximum values, to do that, we need to look at the values in the vertical axis.

  • The first maximum value is at y = 0 (the one for x = -2)
  • The second maximum is at y = 3 (the one for x = 2).

If you want to learn more about maximums:

brainly.com/question/1938915

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4 0
2 years ago
Which expression is equal to 13 more than the quotient of n and 8
Juli2301 [7.4K]

Answer:

(n/8)+13

Step-by-step explanation:


6 0
3 years ago
Simplify equation 8m²n³+16M⁴n²
gulaghasi [49]

Answer:

your answer is 24m n hope this helps

Step-by-step explanation:

8 0
3 years ago
Which are equivalent to each other 6a-4a+2, 2+5a+5a and 9a+a+2 WHO EVER ANSWERS I WILL MARK BRAINLIEST
Tanya [424]

Answer:

2+5a+5a and 9a+a+2

Step-by-step explanation:

It is the answer as

6a-4a+2= 2a+2

2+5a+5a= 10a+2

& 9a+a+2= 10a+2

PLEASE MARK ME AS BRAINLIEST!!!

6 0
3 years ago
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