find the zeros of quadratic polynomial 25x(x+1)+4
Anonymous:
Neelam boy??
Answers
Answered by
6
25x(x+1)+4
=25x²+25x+4
=25x²+20x+5x+4
=5x(5x+4)+1(5x+4)
=(5x+4)(5x+1)
so
5x+1=0
therefore, x=-1/5
5x+4=0
x=-4/5
the two zeroes of the quadratic polynomial are -1/5 and -4/5
=25x²+25x+4
=25x²+20x+5x+4
=5x(5x+4)+1(5x+4)
=(5x+4)(5x+1)
so
5x+1=0
therefore, x=-1/5
5x+4=0
x=-4/5
the two zeroes of the quadratic polynomial are -1/5 and -4/5
Similar questions