3 years ago

Percy solved the equation x2 + 7x + 12 = 12. His work is shown below. Is Percy correct? Explain.

Mathematics

2 answers:

Viktor [21]3 years ago

7 0

Answer:

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Furkat [3]3 years ago

4 0

Answer:

Percy is incorrect

Step-by-step explanation:

I plugged in 9 and 8 for x and both of them did NOT solve it. The only number I know of that can solve it is -7. -7^2=49

-7 multiplied by 7 =-49

(49) + (-49) + 12 = 12

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