Question
Download Solution PDFOne of the factors of is :
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFGiven:
The expression to factorize is 6x2 - 24xy + 17x + 24y2 - 34y + 5
Calculation:
Let's try to group terms or use a systematic approach.
Consider the quadratic terms: 6x2 - 24xy + 24y2
We can factor out 6: 6(x2 - 4xy + 4y2)
Recognize the perfect square trinomial: 6(x - 2y)2
So the expression becomes: 6(x - 2y)2 + 17x - 34y + 5
Notice that 17x - 34y can be factored as 17(x - 2y).
Let P = (x - 2y).
The expression now becomes: 6P2 + 17P + 5
This is a quadratic expression in P. We can factor this quadratic.
We need two numbers that multiply to 6 × 5 = 30 and add up to 17. These numbers are 15 and 2.
6P2 + 15P + 2P + 5
(6P2 + 15P) + (2P + 5)
3P(2P + 5) + 1(2P + 5)
(3P + 1)(2P + 5)
Now substitute P = (x - 2y) back into the factored expression:
[3(x - 2y) + 1][2(x - 2y) + 5]
[3x - 6y + 1][2x - 4y + 5]
So, the factors are (3x - 6y + 1) and (2x - 4y + 5).
∴ The correct answer is option 4.
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