Question

the equation whose roots are numerically equal but opposite sign then roots of the equation y 3 X square + 5 x minus 7​

Answer 1

Step-by-step explanation:

Let's try solving this using the quadratic formula. According to the formula, the roots are

x=−b+b2−4ac−−−−−−−√2ax=−b+b2−4ac2a

AND

x=−b−b2−4ac−−−−−−−√2ax=−b−b2−4ac2a

If the two are equal in value and opposite in sign:

−b−b2−4ac−−−−−−−√2a=−−b+b2−4ac−−−−−−−√2a−b−b2−4ac2a=−−b+b2−4ac2a

−b−b2−4ac−−−−−−−√=−(−b+b2−4ac−−−−−−−√)−b−b2−4ac=−(−b+b2−4ac)

−b−b2−4ac−−−−−−−√=b−b2−4ac−−−−−−−√