Answer:
(x - 3)(x + 10)
Explanation:
Break the expression into groups :
(x^2 -3x) + (10x - 30)
Factor out x from x^2 - 3x
= x (x - 3)
Factor out 10 from 10x - 30
= 10 (x - 3)
= x (x - 3) + 10 (x - 3)
(x-3) (x+10)
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