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

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

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factor a^2-9a+20

factor

a^{2} - 9 a + 20

(a - 4) (a - 5)

Solution steps

a^{2} - 9 a + 20

Break the expression into groups

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

Factor out

a

from

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

Factor out

- 5

from

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

= a (a - 4) - 5 (a - 4)

Factor out common term

a - 4

= (a - 4) (a - 5)

∣ x - 7 ∣ < 2

p^{2} + 5 p - 14 = 0

\frac{1 + a ^{3}}{1 + a}

2 x^{2} + 13 x = 7

(\frac{1}{x - 1})^{2}