**(x**^{2} – 3x) (x^{2} – 3x + 7) + 10

^{2}– 3x) (x

^{2}– 3x + 7) + 10

(x^{2} – 3x) (x^{2} – 3x + 7) + 10

Let us assume, (x^{2} – 3x) = q

q (q + 7) + 10

q^{2} + 7q + 10

q^{2} + 5q + 2q + 10

q(q + 5) + 2(q + 5)

(q + 5) (q + 2)

Now, substitute the value of q

(x^{2} – 3x + 5) (x^{2} – 3x + 2)