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=X square there is written at the end


=X square there is written at the end ​-example-1

2 Answers

1 vote

Answer:

Hello,

Explanation:


Using\ the\ formula\ (a+b)(a-b)=a^2-b^2\\p=3x+1\\q=3x-1\\\\p*q=(3x+1)*(3x-1)=9x²-1\\\\p*q+1=9x^2\\\\x^2=(p*q+1)/(9) \\

User MADHAVI KUMARI
by
4.0k points
3 votes

Answer:

see explanation

Explanation:


(pq+1)/(9)

=
((3x+1)(3x-1)+1)/(9)

=
(9x^2- 1+1)/(9)

=
(9x^2)/(9)

= x²

User Kholdarbekov
by
4.2k points