Question

решите примеры      3х-9у

16z-20y

ab-bc

4cx-acx

ad+bd+cd

abx-acx-adx

Answer 1

3х-9у=3(х-3у)

16z-20y=4(4z-5y)

ab-bc=b(a-c)

4cx-acx=cx(4-a)

ad+bd+cd=d(a+b+c)

abx-acx-adx=ax(b-c-d)

Answer 2

3х - 9у = 3(х - 3у) ab - bc = b(a - c) 4cx - acx = cx(4 - a) ad + bd + cd = d(a + b + c) abx - acx - adx = ax(b - c - d)