Question

Q1. If one root of x2 – 3x + a = 0, is 1, then value of a is
(a) 2
(b)-2
(C)-4
(d) 4​

Answer 1

Answer:

option (a ). 2

is correct answer

Answer 2

Given :-

x² - 3x + a = 0

To Find :-

Value of a

Solution :-

Given equation,

f(x) = x² - 3x + a

Putting x = 1

(1)² - 3(1) + a = 0

1 - 3 + a = 0

-2 + a = 0

a = 0 + 2

a = 2

Therefore

Value of a is 2