3a+4a²-10,if a=-2
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3a+4a^2-10_ _
If a = -2,
3(-2)+4((-2)^2)-10
=-6+4(-4)-10.
=-6-16-10.
=-32
If a = -2,
3(-2)+4((-2)^2)-10
=-6+4(-4)-10.
=-6-16-10.
=-32
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