A quadratic polynomial whose zeroes are and is
(a) 10x + x + 3 (b) 10x² + x-3 (c) 10x -x +3 (d) 10x -x-3
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Step-by-step explanation:
You mentioned that quadratic polynomial
in the given options ,Option B is the only quadratic polynomial remaining are linear polynomials.
Option b
10x²+x-3
=>10x²-5x+6x-3
=>5x(2x-1)+3(2x-1)
=>(2x-1)(5x+3)
To get zeroes we equate the given polynomial to zero
=>(2x-1)(5x+3)=0
=>2x-1=0 or 5x+3=0
=>x=1/2 and -3/5
the zeroes are 1/2 and -3/5
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