Question

300n square+500n=+130000

Answer 1

Step-by-step explanation:

300n2+500n-130000=0

=100(3n2+5n-1300)=0

=3n2+5n-1300=0

=3n²+5n-1300=0

or, 3n²+65n-60n-1300=0

or, n(3n+65)-20(3n+65)=0

or, (3n+65)(n-20)=0

3n+65=0

3n=-65

n=-65/3

n-20=0

n=20

n=-65/3 or 20