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Mathematics
Louis Avila
1 September, 04:16
Evaluate the polynomial when x = 7 and y = - 2
X^2 - y^2+xy
+3
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Julia Watts
1 September, 07:59
0
Hello
Evaluate the polynomial x²-y²+xy when x=7 and y=-2
(7) ² - (-2) ² + (7) (-2) = 49-4-14 = 49-18 = 31
Important note : (-2) ² = (-2) (-2) = 4
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