Math, asked by Regineiskyut, 7 months ago

What is the most appropriate method to solve quadratic equation x² -2= 2?
A.by extracting the square root
B.by factoring
C.by completing the square
D.by using the quadratic formula

Answers

Answered by vinay13893
8

Answer:

A is the most appropriate method.

Step-by-step explanation:

x^2 -2 = 2

x^2 = 2+2 = 4

x = √4

= 2

Answered by akshay0222
0

Given,

\[f\left( x \right) \Rightarrow {x^2} - 2 = 2\]

Solution,

Know that a quadratic equation is in the form of \[a{x^2} + bx + c = 0\].

Therefore,

\[\begin{array}{l} \Rightarrow {x^2} - 2 = 2\\ \Rightarrow {x^2} = 2 + 2\\ \Rightarrow {x^2} = 4\\ \Rightarrow x =  \pm 2\end{array}\]

Hence, the correct option is (A) i.e. by extracting the square root.

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