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Solve the following system of equations algebraically: Y = x^2 + 8x – 9 Y = 2x + 7

Solve the following system of equations algebraically: Y = x^2 + 8x – 9 Y = 2x + 7
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1 vote
Solve the following system of equations algebraically:
Y = x^2 + 8x – 9
Y = 2x + 7

User Umer Hassan
by
7.2k points

1 Answer

4 votes
use simultaneous equations:
2x + 7 = x^2 + 8x - 9
7 = x^2 + 6x - 9
16 = x^2 + 6x
+ or - 4 = 7x
answer is
-4/7 or 4/7
User Kotaro
by
7.8k points
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