answersLogoWhite

0


Best Answer

x2 + 4 = 0

then get the x on one side.

x2 = -4

then find the square root of both which would cancel the square on the x.

therefore the answer is: x = the square root of -4 = i squared root 4, which is a complex number ( imaginary number) since you cannot find the square root of oa negative number

User Avatar

Wiki User

โˆ™ 2011-09-13 05:46:36
This answer is:
๐Ÿ™
0
๐Ÿคจ
0
๐Ÿ˜ฎ
0
User Avatar
Study guides

Algebra

20 cards

A polynomial of degree zero is a constant term

The grouping method of factoring can still be used when only some of the terms share a common factor A True B False

The sum or difference of p and q is the of the x-term in the trinomial

A number a power of a variable or a product of the two is a monomial while a polynomial is the of monomials

โžก๏ธ
See all cards
3.71
โ˜†โ˜…โ˜†โ˜…โ˜†โ˜…โ˜†โ˜…โ˜†โ˜…
346 Reviews

Add your answer:

Earn +20 pts
Q: How to solve X squared plus 4 equals zero?
Write your answer...
Submit
Still have questions?
magnify glass
imp
Related questions

Can you solve x squared minus six plus five equals zero?

X=1


How do you solve x squared minus ten x plus six equals zero?

It can be solved by using the quadratic equation formula.


How do you solve 2x squared plus x plus 2 equals 0 by completing the square?

It cannot be solved because the discriminant of the quadratic equation is less than zero


How do you solve x squared minus ten x plus sixteen equals zero?

Factor it. (x - 8)(x - 2) x = 2, 8


What is 0 squared?

0 squared is 0. Zero times zero equals zero.


How do you find 9x squared plus four x plus 2 equals zero?

It has no solutions because the discriminant is less than zero.


What does 0 squared equal?

It equals 0. Zero times zero equals zero.


How do you solve 12x squared plus 9x plus 15 equals 0 with quadratic formula?

It can't be solved because the discriminant of the given quadratic equation is less than zero meaning it has no real roots.


How do you factor 2x squared plus 8x plus 20 equals 0?

It can not be factored because its discriminant is less than zero


Solve 7 plus p equals 7?

p is obviously zero because any number x plus 0 equals itself.


What is X squared plus 6x minus 55?

Without knowing what "x" is, we cannot say what the answer will be. And without knowing the answer, we cannot solve for "x". Set x at zero, for example. Zero squared is zero, plus 6 time zero which is zero, minus 55. Your answer is then -55. Set x at one, for example. One squared is one, plus 6 times 1 which is six, minus 55. Your answer is then -48. Etc.


How do you solve x squared minus two x plus one equals zero?

x2-2x+1 = 0 (x-1)(x-1) = 0 x = 1 and also x = 1


What is six x squared plus seven x minus five equals zero?

x = 5 / 6squared + 7


How would you solve four x squared plus seven that is equal to zero?

you shouldn't be cheating u tard. it -24x +3 is ur answer


How do solve three x squared plus five x minus eight equals zero?

3x^2 + 5x - 8 = 0 + 8 + 8 3x^2 + 5x = 0 8x ^2 = 0


Solve 2x-y equals 1 2x plus 5y equals -5?

X = 0 (zero) Y = -1 (neg 1)


X2 plus 6x-16 equals?

Equals anything... x is a variable. If that equation was set equal to zero then you could solve for x, but that is not what you have asked.


How would you solve x squared minus two x minus three equals zero?

That factors to (x + 1)(x - 3) x = -1, 3


What is 2x squared plus x minus 1 equals zero in quadratic form?

It is, as stated, 2x2 + x - 1 = 0. That is the quadratic form.


What is two minus zero minus zero plus zero?

It Equals 2


How do you solve minus 2x squared plus 10x minus 14 equal 0?

It can't be solved because the discriminant of this quadratic equation is less than zero


How do you solve x squared minus 4 equals zero?

So u have the function x2-4=0 Now because 4 is a squared number, its square root is 2 (x+2)(x-2)=0


What is x squared equals 0?

If x2 is zero, then x=0 (and no, that is not an emoticon) The only root of zero is zero.


Can you solve x squared plus x minus six equals zero?

x2 + X -6 =0 so X2 + X = 6 so X2 = 6-x so X = square root of (6-x) That's as far as I can get it.


What is x squared minus 5x plus 25 over 4 equals zero in quadratic form?

It is, as stated, x2 - 5x + 25/4 = 0