How do you Factorise x²+y²
Answers
Answered by
3
Step-by-step explanation:
The difference of squares, x² – y², can be factored as the product of the sum and difference of two terms, or x² – y² = (x + y)(x – y). Example: 2x2 – 18 = 2(x² – 9), = 2(x – 3)(x + 3).
Answered by
2
Answer:
(x+y)² - 2xy or (x-y)² + 2xy
Step-by-step explanation:
there is no specific identity for this as far as I know.
x² + y² , this is not needed to be solved. You can either write it as the final answer.
OR
It can be solved by x²+y² = (x+y)² - 2xy
Proof : (x+y)² + 2xy = x²+ y² + 2xy - 2xy = x²+y²
OR
It can be solved by x²+y² = (x-y)² + 2xy
Proof : (x-y)² + 2xy = x²+ y² - 2xy + 2xy = x²+y²
Hope this will help you.
If so please mark me brainliest.
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