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Bond [772]
3 years ago
7

Percy solved the equation x^2 + 7x + 12 = 12. His work is shown below. Is Percy correct? Explain.

Mathematics
1 answer:
evablogger [386]3 years ago
4 0
No. To solve the equation it needs to be set to 0.
1. x^2 +7x = 0
Then the GCF needs to be found
2. x(x+7) = 0
Set each to 0
3. x= 0 or x+7=0
Solve for x
4. x=0 or x=-7
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-------------------------------------------------------------------------------------------------------------

Answer:  \textsf{n = -11}

-------------------------------------------------------------------------------------------------------------

Given:  \textsf{-19 = -8 + n}

Find:  \textsf{Solve for n}

Solution: In order to solve for n we need to add 8 to both sides which would cancel -8 on the right side and isolate n giving us the value of n.

<u>Add 8 to both sides</u>

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Therefore, the final answer would be that n is equal to -11.

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