x^2×y^2+23xy-420= whatttttttt???????
Answers
Answer:
( x y + 35 ) ( x y - 12)
Step-by-step explanation:
Given ---> ( x² y² + 23 x y - 420 )
To find ---> Factorize the given
expression
Solution---> x² y² + 23 x y - 420
We factorize it by splitting the middle term. First we do prime factorization of 420
420 = 7 × 5 × 3 × 2 × 2
Now we make two numbers from these factors whose product is 420 and whose difference is 23
For this we can take 7 and 5 together and 2 , 2 and 3 together as follows
7 × 5 = 35
3 × 2 × 2 = 12
So the required numbers are 35 and 12
35 × 12 = 420
35 - 12 = 23
Now
x² y² + 23 x y - 420
=> x² y² + ( 35 - 12 ) xy - 420
=> x² y² + 35 xy - 12 xy - 420
=> x y ( x y + 35 ) - 12 ( xy + 35 )
=> ( x y + 35 ) ( x y - 12 )
Step-by-step explanation:
seee the picture .here. is your answer.
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