timhardiman135 timhardiman135

31-03-2021
Mathematics

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3x²-2xy+4y² for x=-1 and y=-2

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Аноним Аноним

31-03-2021

Answer:

15 is your answer

Step-by-step explanation:

3x²-2xy+4y² for x=-1 and y=-2

=3×{-1}²-2×{-1}{-2}+4{-2}²

=3-2×2+4×4

=3-4+16

=15

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