Question

1)7x-14=
2)-6a²+4a=
3)a²-4b²=

Answer 1

1)7x-14
7x=14
x=2

2)-6a^2+4a
a(-6a+4)=0
a=0. -6a+4=0
-6a=0
a=0

3)a^2-4b^2=(a-2b)(a+2b)