Mathematics, 21.10.2020 17:01 geg05
Sadie uses the polynomial identity (2x + y)^2 = 4x^2 + 4xy + y^2 to show that 23^2 = 529.
What values can Sadie use for x and y?
A. x = 8 and y = 15
B. x = 8 and y = 7
C. x = 15 and y = 8
D. x = 7 and y = 8
Answers: 1
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Sadie uses the polynomial identity (2x + y)^2 = 4x^2 + 4xy + y^2 to show that 23^2 = 529.
What valu...
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