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12 Answers
- Anonymous1 decade agoFavorite Answer
first you combine the like terms:
6a - 4a +7 + 8
then you solve:
2a + 15
=]
- Anonymous1 decade ago
2a +15
Source(s): 2 - How do you think about the answers? You can sign in to vote the answer.
- Anonymous1 decade ago
2a+15
if u want to find the value of a
a=-15/2
a=-7.5
- ?Lv 45 years ago
factoring... a million. a^2-b^2 =(a+b)(a-b) ...............Ans 2. a million-81a^2= (a million+9a)(a million-9a) ............Ans 3. 2a^3+8=2(a^3+4) ....................Ans 4. a^3-6a^2+9a=a(a^2-6a+9)=a(a-3)^2.....Ans 5. a^3+sixty 4=(a+4)(a^2-4a+sixteen)..............Ans 6. 15a^2+11ab-12b^2=15a^2 -20ab +9ab-12b^2=5a(3a-4b)+3b(3a-4b) =(5a+3b)(3a-4b)...Ans 7. 4a^2-12a+9=(2a-3b)^2................Ans 8. a^2n-b^2n=(a^n +b^n)(a^n-b^n) .........Ans 9. a^3-a^2-a+a million= a^2(a-a million)-a million(a-a million) =(a-a million)(a^2-a million) =(a-a million)(a+a million)(a-a million) =(a+a million)(a-a million)^2....Ans 10. a^4-3a^2+a million= No genuine roots purely imaginary roots...............Ans 7 minutes in the past - 4 days left to reply to
- Anonymous1 decade ago
2a - 1
=]
Source(s): A* - Anonymous1 decade ago
2a-15
i believe.
