Question

if roota(a-7)= 3root2 then a=​

Answer 1

Step-by-step explanation:

square on both sides

a(a-7)=9(2)

a²-7a-18=0

a²-9a+2a-18=0

=>a(a-9)+2(a-9)

a=-2 or 9

i hope it's helpful..

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Answer 2

Answer:

please mark as brainliest

sorry I forgot to square on this part

my answer is wrong