SamAyotte21
Answered

What is the first step in solving the quadratic equation x^2-40=0

Ataking the square root of both side of the equation
Badding 40 to both sides of the equation
Csquaring both sides of the equation
Dsubtracing 40 from both sides of the equation

Verified Answer :

texaschic101

first step would be to add 40 to both sides
x^2 - 40 = 0...add 40 to both sides
x^2 = 40....then u would take the sqrt of both sides
x = (+ - )sqrt 40
x (+ - ) 2 sqrt 10

Answer:

Option B is correct

adding 40 to both sides of the equation

Step-by-step explanation:

Given the quadratic equation:

\(x^2-40 = 0\)

Addition property of equality states that you add a number to both sides of an equation.

Add 40 to both sides of an equation in [1] we have;

\(x^2-40+40= 0+40\)

Simplify:

\(x^2=40\)

Therefore, the  first step in solving the given quadratic equation is,  

adding 40 to both sides of the equation

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