I) a² + b2 - 2ab if a=5 b=3 – InterviewSolution

1.	I) a² + b2 - 2ab if a=5 b=3
Answer» ong>Answer: SIMPLIFY the expression and FIND its value when a = 5 and b =-3. 2(a + ab) + 3- ab 2(a? + ab) + 3-ab = 2a? + 2ab + 3- ab = 2a? + 3 + ab (2 - 1) = 2a? + 3 + ab (1) = 2a? + 3 + ab = 2a? + ab + 3 Putting a = 5, b = -3 = 2(5)? + (5) (-3) + 3 = 2 (25) - 15 + 3 = 50 - 12 = 38

I) a² + b2 - 2ab if a=5 b=3

Answer»

ong>Answer:

SIMPLIFY the expression and FIND its value when a = 5 and b =-3. 2(a + ab) + 3- ab

2(a? + ab) + 3-ab

= 2a? + 2ab + 3- ab

= 2a? + 3 + ab (2 - 1)

= 2a? + 3 + ab (1)

= 2a? + 3 + ab

= 2a? + ab + 3

Putting a = 5, b = -3

= 2(5)? + (5) (-3) + 3

= 2 (25) - 15 + 3

= 50 - 12 = 38