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QueenKayyy QueenKayyy
  • 31-01-2017
  • Mathematics
Answered

Express 9-y^2 as the product of two binomial factors.

Verified Answer :

mohsan573
mohsan573 mohsan573
  • 31-01-2017

3^2-y^2

then apply formula (a-b)(a+b)=a^2-b^2

so,,
(3-y)(3+y)

Answer Link
apologiabiology
apologiabiology apologiabiology
  • 31-01-2017

recognize the difference of 2 perfect squares
remember that
a²-b²=(a-b)(a+b)
so
9=3²
y²=y²

9-y²=
3²-y²=
(3-y)(3+y)

Answer Link

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