Question

(3a+5b)=25 (3a-5b)=5 find ab

Answer 1

Answer:

a=5 b=2

Step-by-step explanation:

If u do Elimination method

3a+5b=25

3a-5b=5 - 1

this gives 6a=30

then a=5

if you substitute equation 1

you will get b=2

Answer 2

Step-by-step explanation:

the value of ab=10..........