Question

Solve x2 − 7x + 12 = 0.

x = −3, x = −4
x = 3, x = 4
x = 2, x = 6
x = −2, x = −6

Answer 1

x=4, x=3

B is correct.

Explanation:

Given:
`x^2-7x+12=0`

Using middle term splitting factor the left side equation.

`x^2-4x-3x+12=0`

`(x-4)(x-3)=0`

Equate each factor to 0 and solve for x

x-4=0 or x-3=0

x=4 and x=3

Hence, The solution of the equation is 4 or 3