253,495
- 48,617. this is for my other question i asked.

204,878

Step-by-step explanation: 253,495 - 48,617= 204,878

−10x2z+−6xz2+35x2+5xy+4xz+3yz+−12z2

Step-by-step explanation:

Let's simplify step-by-step.

3xz+(5x+3z)(7x−2xz+y−4z)

Distribute:

=3xz+(5x)(7x)+(5x)(−2xz)+(5x)(y)+(5x)(−4z)+(3z)(7x)+(3z)(−2xz)+(3z)(y)+(3z)(−4z)

=3xz+35x2+−10x2z+5xy+−20xz+21xz+−6xz2+3yz+−12z2

Combine Like Terms:

=3xz+35x2+−10x2z+5xy+−20xz+21xz+−6xz2+3yz+−12z2

=(−10x2z)+(−6xz2)+(35x2)+(5xy)+(3xz+−20xz+21xz)+(3yz)+(−12z2)