Question

the value of the algebraic expression -5x²y + 2xy² - xy + 4 when x = 1 and y = -1 is​

Answer 1

Answer:

6

Step-by-step explanation:

-5x²y + 2xy² - xy + 4                 (x = 1, y = -1)

= -5(1)²(-1) + 2(1)(-1)² - (1)(-1) + 4

= 5 - 2 - 1 + 4

= 6

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