Mister Exam
Other calculators
-
How to use it?
- Equation:
-
Equation x^2-25=0
-
Equation 3x-5(2x+1)=3(3-2x)
-
Equation sqrt(x)=4
- Equation 3*x^2-48=0
- Express {x} in terms of y where:
- 3*x-11*y=20
- -17*x+16*y=-19
- 18*x-6*y=7
- 18*x-11*y=5
- Graphing y =:
-
sqrt(x)
- Derivative of:
-
sqrt(x)
- Limit of the function:
-
sqrt(x)
-
Identical expressions
- sqrt(x)= four
- square root of (x) equally 4
- square root of (x) equally four
- √(x)=4
- sqrtx=4
-
Similar expressions
- sqrt(x+3)=sqrt(5-x)
- 100*sqrt(x^2/25+1)/((x^2*sqrt((3/200)^2*x^2+1)))=1
sqrt(x)=4 equation
The teacher will be very surprised to see your correct solution 😉
The solution
Detail solution
Given the equation
$$\sqrt{x} = 4$$
Because equation degree is equal to = 1/2 - does not contain even numbers in the numerator, then
the equation has single real root.
We raise the equation sides to 2-th degree:
We get:
$$\left(\sqrt{1 x + 0}\right)^{2} = 4^{2}$$
or
$$x = 16$$
We get the answer: x = 16
The final answer:
$$x_{1} = 16$$
$$\sqrt{x} = 4$$
Because equation degree is equal to = 1/2 - does not contain even numbers in the numerator, then
the equation has single real root.
We raise the equation sides to 2-th degree:
We get:
$$\left(\sqrt{1 x + 0}\right)^{2} = 4^{2}$$
or
$$x = 16$$
We get the answer: x = 16
The final answer:
$$x_{1} = 16$$
Sum and product of roots
[src]
sum
0 + 16
$$0 + 16$$
=
16
$$16$$
product
1*16
$$1 \cdot 16$$
=
16
$$16$$
16
The graph