Question

(2 x -10^3)(4 x 10^4) in standard notation

Answer 1

− 8 × 10 ^7

Explanation:

Answer 2

23x10000 • (x - 500)

Explanation:

Step 1 :

1.1 10 = 2•5

(10)4 = (2•5)4 = 24 • 54

(2x - (103)) • (4 • (x(2^4•5^4)))

(2x - (103)) • 22x10000

3.1 10 = 2•5

(10)3 = (2•5)3 = 23 • 53

5.1 Pull out like factors :

2x - 1000 = 2 • (x - 500)

multiplied by 22 = 2(1 + 2) = 23 23x10000 • (x