Question

Is x=3(x is an integer)? I. X^2-7x + 12=0 ii. X^3 = 27?

Answer 1

Answer:

x^2-7x+12=0 (x=3)

= 3^2 -7×3 +12=0

=9-21+12

=24

x^3=27

3^3=27

27=27

27-27=0