Question

find the value of expression 4(2x-1)for x=2
a.12
b.25
c.18
d.0​

Answer 1

5

2x+1

÷25=125

=>5

2x+1

÷5

2

=125

=>5

2x+1−2

=5

3

Now, but equating the power we have,

=> 2x +1 - 2 = 3

=> 2x - 1 = 3

=> 2x = 3+1

=> 2x = 4

=> x = 4/2

=> x = 2

Hence, the value of x = 2..

Answer 2

Answer:

12

Step-by-step explanation:

4 (2 × 2 - 1 )

4 (4 - 1)

16 - 4

12

12 is correct answer