15t-(t-4)
I don't have any idea how to do this
I don't have any idea how to do this
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Well, I will help you but only by showing you how it's done.
Take the 15t and leave it alone.
Take the second part... -(t-4)
Think about it by itself.
What does it mean? It means the opposite of what's stated.
So, what's negative +t? What's negative -4?
Switch the signs.
Once you've done that, you can go back and consider the 15t portion.
15t minus the negative of t minus the negative of negative 4 equals what?
Won't give you the answer. You need to learn it. :)
Take the 15t and leave it alone.
Take the second part... -(t-4)
Think about it by itself.
What does it mean? It means the opposite of what's stated.
So, what's negative +t? What's negative -4?
Switch the signs.
Once you've done that, you can go back and consider the 15t portion.
15t minus the negative of t minus the negative of negative 4 equals what?
Won't give you the answer. You need to learn it. :)
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15t-(t-4)
15t+-1(t-4)
15t-t+4
14t+4
15t+-1(t-4)
15t-t+4
14t+4
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-15t^2 + 60t