What is factor c^2-9c+20 ?

The solution to factor c^2-9c+20 is (c-4)(c-5)

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factor c^2-9c+20

factor

c^{2} - 9 c + 20

(c - 4) (c - 5)

Solution steps

c^{2} - 9 c + 20

Break the expression into groups

= (c^{2} - 4 c) + (- 5 c + 20)

Factor out

c

from

c^{2} - 4 c : c (c - 4)

Factor out

- 5

from

- 5 c + 20 : - 5 (c - 4)

= c (c - 4) - 5 (c - 4)

Factor out common term

c - 4

= (c - 4) (c - 5)

8 (x + 1) = 6 - 2 (8 x + 7)

\frac{9}{9}

4 x^{2} + 7 x = 2

5 x^{2} - 50 x = - 85

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