Question

Find the roots of following equation
i) x2 - 7x+12=0​

Answer 1

Answer:

x^2-7x+12=0

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

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

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

x-4=0

=> x=4

again, x-3=0

=> x=3

so , x=3 , x=4