Question

if x=3,find the value of the following expressions a. x-2 b.1-x c.4x-7 d.2x^2-3×-4 e.5x by6​

Answer 1

Answer:

a) x =3

so x-2

3-2

1

b) x =3

so 1-x

1-3

-2

c) x =3

so 4x-7

4*3-7

12-7

5

d)

x =3

d.2x^2-3×-4

2*(3)^2-3*-4

18 + 12

30

5x by6

5(3)/6

15/6

5/2

2.5