Jawaban:
111. bentuk a² + 2ab + b² = (a+b)²
karena (a+b) (a+b) difaktorkan
= a² + ab + ab + b² = a² + 2ab + b² ( C )
112. x² + 6x + 9 = (x+3)²
karena (x+3) (x+3) difaktorkan
= x² + 3x + 3x + 9 = x² + 6x + 9 ( B )
113. y² - 10y + 25 = (y-5)²
karena (y-5) (y-5) difaktorkan
= y² -5y -5y + 25 = y² - 10y + 25 ( A )
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Jawaban:
111. bentuk a² + 2ab + b² = (a+b)²
karena (a+b) (a+b) difaktorkan
= a² + ab + ab + b² = a² + 2ab + b² ( C )
112. x² + 6x + 9 = (x+3)²
karena (x+3) (x+3) difaktorkan
= x² + 3x + 3x + 9 = x² + 6x + 9 ( B )
113. y² - 10y + 25 = (y-5)²
karena (y-5) (y-5) difaktorkan
= y² -5y -5y + 25 = y² - 10y + 25 ( A )