Question

if a +b=0 and ab=(-25) find a and b​

Answer 1

Step-by-step explanation:

if, a = 5 or -5

then, b = -5 or 5

ab = -25 => b = -25/a

So, a = -b = - (-25/a) = 25/a

=> a^2 = (5)^2

=> a = √(5)^2 = 5 or -5

if a = 5 , then , b = -a = - (5) = -5

if a = -5 , then, b = -a = - (-5) = 5

Ans.

Answer 2

Answer:

a = -5 , b = 5

Step-by-step explanation:

a = 0-b = -b

(-b) b = -25

-b² = -25

b² = 25

b = 5

a = -b = -5