Question

১০। a = -1 হলে, a2+2a2-1 এর মান কত? (ক) 0 (খ) -1 (গ) 1 (ঘ) -2​

Answer 1

Answer:

It will be -7 in my calculation....

Answer 2

Answer:

if a = -1 then the equation is

-1×2+2×-1×2-1

= -2-2×2-1

= -2-4-1

= -6 -7

= -7

Step-by-step explanation:

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