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What is the first step in solving the quadratic equation -5x2 + 8 = 133 is to subtract from each side.
Taking the square root of both sides of the equation
Subtracting 8 from both sides of the equation
Squaring both sides of the equation
Adding 8 to both sides of the equation
Solution:
Complex numbers are the numbers that are expressed in the form of a+ib where, a,b are real numbers and ‘i’ is an imaginary number called “iota”.
-5x2 + 8 = 133 [Given]
Let us solve this quadratic equation.
Subtract 8 from both sides to isolate the variable.
-5x2 + 8 - 8 = 133 - 8
By further calculation
-5x2 = 125
So we get
x2 = 125/-5
x2 = - 25
Here
x2 = - 25 = (5i)2
x = ± 5i
Therefore, the first step in solving the quadratic equation is subtracting 8 from both sides of the equation.
What is the first step in solving the quadratic equation -5x2+ 8 = 133 is to subtract from each side.
Taking the square root of both sides of the equation
Subtracting 8 from both sides of the equation
Squaring both sides of the equation
Adding 8 to both sides of the equation
Summary:
The first step in solving the quadratic equation -5x2 + 8 = 133 is to subtract 8 from both sides of the equation.
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