factorise 7x²-19x-6 please explain
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Answered by
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hope it will help u friend
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Mayank200:
bro how was it
Answered by
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To factorize this equation, Let's split the middle term,
-19x can be written as (2x - 21x),
Now re writting the equation,
7x² - 21x + 2x - 6
=> Taking 7x common in first 2 terms, and 2 common in last two terms,
=> 7x(x-3) + 2(x-3)
Now taking (x-3) common,
=> (x-3)[7x+2],
This is the required answer,
So therefore the answer is (x-3)[7x+2],
If you need zeroes of the equation, Let the equation be equal to zero,
Now either x-3 = 0, or 7x +2 = 0,
=> Either x = 3 , or x = -2/7,
So zeroes of equation are 3, -2/7,
Hope you understand, Have a great day !
-19x can be written as (2x - 21x),
Now re writting the equation,
7x² - 21x + 2x - 6
=> Taking 7x common in first 2 terms, and 2 common in last two terms,
=> 7x(x-3) + 2(x-3)
Now taking (x-3) common,
=> (x-3)[7x+2],
This is the required answer,
So therefore the answer is (x-3)[7x+2],
If you need zeroes of the equation, Let the equation be equal to zero,
Now either x-3 = 0, or 7x +2 = 0,
=> Either x = 3 , or x = -2/7,
So zeroes of equation are 3, -2/7,
Hope you understand, Have a great day !
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