y=2x2+5. Plug in 0 for x, and you get y=2(0)^2 +5 =0+5=5. 5 is the minimum value for y.
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There are 120 solutions.
(1/2, 71 and 3/4)or(0.5, 71.75)
28 in this case.
For (x, y) = (0, 3) the first equation gives: 2*0 + 3 = -3 that is, +3 = -3 which is FALSE. So (0, 3) is not a solution.
yes because ab plus bc is ac