One of the two things being multiplied must be zero, so either x – 3 = 0 or x + 7 = 0.
If x + 7 = 0, then x = –7. In that case, we can substitute into x – 3:
x – 3
= –7 – 3
= –10
So x – 3 can equal 0 or –10.
from Tumblr https://ift.tt/2CHPjwW
One of the two things being multiplied must be zero, so either x – 3 = 0 or x + 7 = 0.
If x + 7 = 0, then x = –7. In that case, we can substitute into x – 3:
x – 3
= –7 – 3
= –10
So x – 3 can equal 0 or –10.
from Tumblr https://ift.tt/2CHPjwW