Let p=x^2-2
Which equation is equivalent to (x^2-2)^2+18=9x^2-18 in terms of p ?
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Answer:
p = 6 or p= 3
Step-by-step explanation:
since p= x²-2..............(1)
=> (x²-2)²+18= 9x²-18
=> (x²-2)²+18 = 9(x²-2)
=> p²+18 = 9p from(1)
=> p²-9p+18=0
Hopefully I say it's helpful for you all
=> p²-6p-3p+18
= p(p-6) -3(p-6)=0
=( p-6)(p-3)= 0
=> p= 6 or 3
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