Question

a2+b2=15 এবং ab=5 হলে (a+b)2 এর মান কত?​

Answer 1

Answer:

(a+b)²

= a²+b²+2ab

= 15+2(5)

=>15+10= 25

Answer 2

Answer:

a^2+b2 formula

(a+b)-2ab

a^2+b^2=15

=(a+b)^2-2ab=15

=(a+b)^2 -2×5=15

=(a+b)^3-10=15

=(a+b)^2=15+10

=(a+b)^2=25

ans =25