Question

a+b=15 a.b=25
a²+b²=?

Answer 1

VERIFIED ANSWER ✅

(a+b) ² = a²+b²+2ab

( 15 ) ² = a²+b²+ 2(25)

225 = a²+b²+50

175 = a²+b²

therefore the correct answer is 175.

Answer 2

Answer:

a-b=5…………(1)

a-b=12…………(2)

a^2+b^2=?

Formula:-

(a-b)^2+2.a.b =a^2+b^2

(5)^2. +2.12=a^2+b^2

25+24. =a^2+b^2

or. a^2+b^2=49. Answer.