5) The value of the algebraic expression x2 - 2xy + y at x = -1 and y = 2 is
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Answer:
Answer is 7.
Step-by-step explanation:
Put the values of x and y in the given algebraic expression :
(-1)² - 2(-1)(2) + 2
= 1 - (-4) + 2
= 1 + 4 + 2
= 7
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