Question

If a square-3a-1=0, find the value of a square+1/a square​

Answer 1

Answer:

Step-by-step explanation:

Given that ;

a² - 3a + 1 = 0

⇒ a² - 3a = - 1

⇒ a(a - 3) = - 1

⇒ a - 3 =

⇒ a - 3 + = 0

⇒ a + = 3

Hence, the answer is 3.

_______________________

(ii) To find the value of a² +

On squaring both sides ;

Hence, the answer is 7.