B=(5x-9)(5x+9)

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Solution for B=(5x-9)(5x+9) equation: 



=(5B-9)(5B+9)

We move all terms to the left:

-((5B-9)(5B+9))=0

We use the square of the difference formula

25B^2+81=0

a = 25; b = 0; c = +81;
Δ = b2-4ac
Δ = 02-4·25·81
Δ = -8100
Delta is less than zero, so there is no solution for the equation

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