Question

Find the roots of 2x2 + x -300= 0​

Answer 1

2x²+x-300=0

Comparing the above equation with ax²+bx+c=0

a=2 , b=1 and c=-300

b²-4ac=(1) ²-4×2×-300

=1+2400

=2401

Now, by formula method,

x=-b±√b²-4ac/2a

x=-1±√2401/4

x=-1+√2401/4 or

x=-1-√2401/4

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