Question

plz explain iwill be really grateful needd help​

Answer 1

Answer:

a², c⁴ have even powers

so, there value may be - or + no worries

given

a²b³c⁴d^5>0

but given d < 0

so

d^5 is -

to make whole term +

b³ shld be -

b<0

Answer 2

ans is in pic given above