Instructions:Type the correct answer in each box. Use numerals instead of words. If necessary, use / for the fraction bar(s). Find the missing term and the missing coefficient. (6a −______)5a =______a^2 − 35a
Some help would be appreciated greatly...
@iGreen
5 * ? = -35
That's the same as: 5x = -35 Divide 5 to both sides, what do you get?
-7 but how did you get to that point?
See the -35a? We want to multiply 5a to something to get that, and that number is -7. -7 * 5a = -35a
So 7 goes in the first blank.
Now, you see 6a? We multiply 5a * 6a, what do you get?
30a?
Close, but remember we also multiply the two variables together. \(a \times a = a^2\) So it's actually 30a^2. So 30 goes in the 2nd blank.
So how did you solve the problem in the beginning. It's just been quite a while for me. I'm sorry.
\((6a -~?)5a =~?a^2 - 35a\) Okay, we're supposed to distribute 5a into the parenthesis, to do that we multiply it to every term in the parenthesis. So we multiply 5a * 6a, which gives us 30a^2. And it also tells us that the result of distributing gives us -35a So we find out 5a * what = -35a, which is -7.
Understand?
Thank you, yes.
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