Simplify 4x^2 + 10x

Find the highest common factor of each component. H.c.f. of 4 and 10 is 2, so:4x2 + 10x = 2(2x2 + 5x)H.c.f of x2 and x is simply x, so:2( 2x2 + 5x) = 2x(2x + 5)

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