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32 votes
32 votes
Please help as soon as possible I really need the help! Thank you

Please help as soon as possible I really need the help! Thank you-example-1
User Sher Ali
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2.3k points

1 Answer

5 votes
5 votes

Answer:

x = 1, y = 4, or x = -2, y = 1

Explanation:

y = -x^2 + 5

-x + y = 3

Use substitution to solve for the equation

-x + (-x^2 + 5) = 3

-x^2 - x + 5 = 3 (simplifying)

-x^2 -x + 2 = 0 (simplifying)

(-x + 1)(x+2) = 0 (factoring)

-x + 1 = 0 or x + 2 = 0

x = 1, or x = -2

-x + y = 3

-(1) + y = 3, or -(-2) + y = 3

y = 4, or y = 1

just choose any one...

x = 1, y = 4

or x = -2, y = 1

(they both work)

User Pdubois
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2.5k points