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GCD OF THE TERMS OF EACH POLYNOMIAL

25x^3-15x^2

4n^4+6n^3-8n^2

6x^2+12x-21

1) 5x^2(5x - 3)

2) 2n^2(2n^2 + 3n - 4)

3) 3(2x^2 + 4x - 7)

25x^3-15x^2 = 5*x*x*(5x - 3)

4n^4+6n^3-8n^2 = 2*n*n*(2n^2 + 3n - 4)

6x^2+12x-21 = 3*(2x^2 + 4x - 7)

1 is GCD