Answer:
false
Explanation:
w^2 = 49
w = √49 w= -√49
w = 7. w = -7
w^2 = -49
w = √-49
impossible because the square root of a negative number doesn’t exist in R
NO. The solution are not the same.
To justify, solve quadratic equation by extracting the roots:
w² = 49
w = +7, -7
While:
w² + 49 = 0
w² = -49
w = or , an imaginary number
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