(2x - 5)(2x - 5) or (2x - 5) squared
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(2x + 5)(4x2 - 10x + 25)
(2x + 5)(4x^2 - 10x + 25)
9x2 + 25 has no rational factors. Its factorisation in the complex domain is:(3x + 5i)*(3x - 5i) where i is the imaginary square root of -1.
1 x 25, 5 x 5, 25 x 1
If 40 plus x equals 25 then x is equal to -15.