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alexandr1967 [171]
2 years ago
8

What is the mistake NEED ANSWER ASAP​

Mathematics
1 answer:
julsineya [31]2 years ago
4 0

Answer:

The answers are in the image.

Step-by-step explanation:

Charlie made the mistake by not getting the equation equal to zero.

x^2 - 9x + 8 = 16

Subtract 16 to both sides making it equal to 0.

x^2 - 9x - 8 = 0

Using Quadratic Formula to Solve for x.

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