Factor each expression and explain how.

52.

w^2 - 15w - 54

54.

-2h^2 + 4h + 70

52.

w²-15w-54

Factor w and - 18 out from the expression

w (x+3) - 18 (w+3)

Factor out w+3 from the expression

(w-18) (w+3)

54.

-2h²+4h+70

Factor out - 2 from the expression

-2 (h²-2h-35)

Write - 2h as a sum

-2 (h²+5h-7h-35)

Factor out h and - 7 from the expression

-2 (h * (h+5) - 7 (h+5))

Factor out h+5 from the expression

-2 (h-7) (h+5)