Stosując wzory skróconego mnożenia wykonaj działania:
a)
(X2+2y5)2=
b)
c)
(4-√3) (4+√3)=
(x² + 2y^5)² = (x²)² + 2 * x² * 2y^5 + (2y^5)² = x^4 + 4x² y^5 + 4y^10
(7 - 2√2)² = 7² - 2 * 7 * 2√2 + (2√2)² = 49 - 28√2 + 8 = 57 - 28√2
(4-√3) (4+√3)= 4² - (√3)² = 16 - 3 = 13
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a)
(x² + 2y^5)² = (x²)² + 2 * x² * 2y^5 + (2y^5)² = x^4 + 4x² y^5 + 4y^10
b)
(7 - 2√2)² = 7² - 2 * 7 * 2√2 + (2√2)² = 49 - 28√2 + 8 = 57 - 28√2
c)
(4-√3) (4+√3)= 4² - (√3)² = 16 - 3 = 13