Question

The value of 25x³ y² z for x=1, y=2 and z=3 is

Answer 1

25(1)^3(2)^2(3)
25(1)(4)(3)
25(4)(3)
100(3)
300

Answer 2

187500

alternative form: 1.875 x 10^5

1: evaluate the power

25^3 x 2^2 x 3

25 x 4 x3

2: calculate the product

12 x 25^3

3: evaluate the power

12 x 15625

4: multiply the numbers

187500

alternative form: 1.875 x 10^5