Question

12. 2a2 - 8a - 64 plz.tell me the ans​

Answer 1

Answer:

2a^2-16a+4a-64

2a(a-8)+4(a-16)

Step-by-step explanation:

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Answer 2

Answer:

2a^2-8a-64=0

divide by 2

a^2-4a-32=0

a^2-8a+4a-32=0

a(a-8)+4(a-8)=0

(a+4)(a-8)=0

a=-4,8