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RS Aggarwal Solutions Class 9 Mathematics Solutions for Factorization of Polynomials Exercise 3B in Chapter 3 - Factorization of Polynomials
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𝑥^2 + 𝑦^2 − 𝑧^2 − 2𝑥𝑦
Answer:
𝑥^2 + 𝑦^2 − 𝑧^2 − 2𝑥𝑦
We can write it as
= (𝑥^2 + 𝑦^2 − 2𝑥𝑦) − 𝑧^2
So we get
= (𝑥 − 𝑦)^2 − 𝑧^2
Based on the equation 𝑎^2 − 𝑏^2 = (𝑎 + 𝑏)(𝑎 − 𝑏)
We get,
= (x – y + z) (x – y – z)
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