Question

solve the following quadratic equation by extracting the square roots 1. ײ-16 - 0​

Answer 1

Answer:

${x}^{2} - 16 = 0 \\ \\ = > {x}^{2} = 16 \\ \\ = > x = + \: or \: - \sqrt{16} \\ \\ = > x = + 4 \: or \: - 4$

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Answer 2

Answer:

solution:

X2 - 16 =0

X2 = 16

X = √16

X= 4 ( x can be - or +)

So threrefore (0=X+4) (0=X-4)