Nikki had a $50 gift card for her favorite store. She used the gift card to buy 4 DVDs and still had money available on the card
2 answers:
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Answer:
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Step-by-step explanation:
We complete the square as follows
Group the constant term on the right hand side
Divide through by 2,
Add half the square of the coefficient of x to get;
Simplify to get
Take the square root of both sides to get
Solve for x
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