Answer:
how should i answer? by factoring?
1. [tex]a(b+c+d)[/tex]
2. [tex](c+d)(a+b)[/tex]
3. [tex]2(a+2b)[/tex]
4.[tex](2a+b)(2a-b)[/tex]
5. [tex](2a+b)(4a^{2} -2ab+b^{2} )[/tex]
6. [tex]4a^{2} -40a+25[/tex]
7. [tex](a-5)(a+3)[/tex]
8. [tex](a-1)(3a-10)[/tex]
Step-by-step explanation:
