Please help as quickly as possible (20pts)
1 answer:
Answer:
c) (-2, 6)
Step-by-step explanation:
Subtracting the second equation from the first gives ...
(y) -(y) = (x^2 +3x +8) -(2x +10)
0 = x^2 +x -2 . . . . . simplify
0 = (x -1)(x +2) . . . . factor
Solutions for x are 1 and -2. The corresponding y-values are ...
y = 2{1, -2} +10 = {2, -4} +10 = {12, 6}
The solutions are (1, 12) and (-2, 6). The only matching choice is (-2, 6).
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