Question

How to factor this trinomial 6r^2+5r+6

Answer 1

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6r^2+5r+6

This sum can not be solved by factor we have to use there formula of Shridhar Aacharya....

that's X = -b±√b^2-4ac/2a = 0

Here,
A = 6

B = 5

C = 6

Now,

-5±√5^2-4×6×6/2×6 = 0

-5±√25-144/12 = 0

-5±√-119/12 = 0

Now the steps can not go further bcoz we can not calculate square root of any negetive number.

So

r does not belong to R

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