Question

(1) a + b = 8 sitt ab = 15​

Answer 1

Answer:

a=3 b=5

Step-by-step explanation:

a+b=8

no. that makes 8when smaller than 8

3 or 5

3×5=15

Answer 2

Answer:

given

a+b=8

ab  = 15

a+b=8

b  =(8-a)

ab=15

a(8-a)=15  

8a-a² = 15

a²-8a+15 = 0

a²-3a-5a+15=0

a(a-3)-5(a-3) = 0

(a-5)(a-3) = 0

a-5=0

then, a =5          

a-3=0

a  = 3

if a =3

b  = (8-a)

   = 8-3 = 5

if a = 3

b = 8-a

   = 8-3 = 5

then then values of 'a' and 'b' are 5 and 3