If a + b = 12 and ab = 35, find the value of a4 + b4 – 103?
Show answer & explanation
Correct answer: B
Explanation
The correct answer is option 2 i.e. 2923
Given:
a + b = 12 and ab = 35
Calculations:
By hit and trial method we can find the value of a and b.
a = 7 and b = 5 satisfy the given equation.
Now use the values of a and b
According to the question;
⇒ a4 + b4 – 103
⇒ 74 + 54 - 103
⇒ 2401 + 625 - 103
⇒ 2923