Question

If a – 3 = 10/a, the values of ‘a’ are ________
(a) - 5, 2 (b) 5, - 2 (c) 5, 2 (d) 5, 0

Answer 1

Answer:

a option that is -5,2 ok

but can be wrong

Answer 2

Answer:

(5 , -2)

Option(B)

Step-by-step explanation:

$a-3=\frac{10}{a} \\\\a(a-3)=10\\\\a^{2} -3a=10\\\\a^{2} -3a-10 = 0$

Using factorization method,

$a^{2} -5a+2a-10=0\\\\a(a-5)+2(a-5)=0\\\\(a-5)(a+2)=0\\\\a-5=0\\\\a=5$

$a+2=0\\\\a=-2$

(5 , -2)