Find the sum of 8a2+a-9 and -6-a2
8a2 (the two is an exponent) -a2 (the two is also an exponent)
2006-09-25 08:36:45 · 5 answers · asked by bob s 2 in Education & Reference ➔ Homework Help
Ya and im 13--thnks smileygrl u get 10 points as soo nas yahoo lets me!
2006-09-25 08:53:05 · update #1
8a^2+a-9-6-a^2
7a^2+a-9-6 (combine a^2's)
7a^2 +a-15 (combine -9 and -6)
And that's it! You can't simplify it any more than that.
2006-09-25 08:40:15 · answer #1 · answered by Anonymous · 0⤊ 1⤋
Combine like terms:
8a2 from the first equation -a2 from the second equation= 7a2
-9 from the first and -6 from the second = -15
The a remain from the first equation, which leaves you with:
7a2+a-15
2006-09-25 15:44:00 · answer #2 · answered by Tom D 2 · 0⤊ 0⤋
OK HERE YOU GO
Add your like terms:
8a^2 and -a^2 are like = 7a^2
a is by itself = a
-9 and -6 are like = -15
Put the answer together.
7a^2+a-15
2006-09-25 15:47:10 · answer #3 · answered by GNK33 2 · 0⤊ 0⤋
Add your like terms:
8a^2 and -a^2 are like = 7a^2
a is by itself = a
-9 and -6 are like = -15
Put the answer together.
7a^2+a-15
Hope this helps. Good Luck.
2006-09-25 15:40:54 · answer #4 · answered by SmileyGirl 4 · 0⤊ 0⤋
i'm only 14 so how can you expect me to do that???
get a maths tutor!
2006-09-25 15:51:52 · answer #5 · answered by Anonymous · 0⤊ 0⤋