Question

-5,6x10y3= -5,6x10y4= 5,6x7y4=

Answer 1

1) $-(5.6*10)y^{3}\\ -56y^{3}$

2)-56y4

3)39.2y4

Answer 2

It appears you are trying to perform some mathematical operations with numbers written in scientific notation. Let's break down each expression:

1. -5.6 x 10^3
2. -5.6 x 10^4
3. 5.6 x 7 x 10^4

Now, let's calculate each of them:

1. -5.6 x 10^3 = -5.6 x 1000 = -5600
2. -5.6 x 10^4 = -5.6 x 10,000 = -56,000
3. 5.6 x 7 x 10^4 = 39.2 x 10,000 = 392,000

So, the results are as follows:

1. -5.6 x 10^3 = -5600
2. -5.6 x 10^4 = -56,000
3. 5.6 x 7 x 10^4 = 392,000