PETS Last month, Hao's dog ate 40 cans
1 answer:
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Option D:
Square both sides of the equation is the best way to solve the equation.
Solution:
Given equation:
To find which is the best way to solve the equation.
Option A: Multiply both sides of the equation by k.
In this method, we are not obtain x value.
It is not true.
Option B: Divide both sides of the equation by k.
In this method, we are not obtain x value.
It is not true.
Option C: Take the square root of both sides of the equation.
In this method, we are not obtain x value.
It is not true.
Option D: Square both sides of the equation.
Square and square root get canceled.
We obtain x value.
It is true.
Therefore square both sides of the equation is the best way to solve the equation.
Option D is the correct answer.
OC = 3 in
Refer to the attachment for complete explaination
