4x²+12yx+9y²;x=-2,y=2
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given x=-2&y=2
=4 (-2)×-(2)+12×2×(-2)+9×2×2
=4×4+12×(-4)+9×4
=16-48+36
=4
hope this helps you
=4 (-2)×-(2)+12×2×(-2)+9×2×2
=4×4+12×(-4)+9×4
=16-48+36
=4
hope this helps you
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