What is factor a^2-2a-3 ?

The solution to factor a^2-2a-3 is (a+1)(a-3)

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factor a^2-2a-3

factor

a^{2} - 2 a - 3

(a + 1) (a - 3)

Solution steps

a^{2} - 2 a - 3

Break the expression into groups

= (a^{2} + a) + (- 3 a - 3)

Factor out

a

from

a^{2} + a : a (a + 1)

Factor out

- 3

from

- 3 a - 3 : - 3 (a + 1)

= a (a + 1) - 3 (a + 1)

Factor out common term

a + 1

= (a + 1) (a - 3)

285

9 (3 x - 4) - 2 x = 17

\frac{a ^{8}}{a ^{2}}

3 x^{2} + 7 x + 1 = 0

∣ x - 4 ∣ > 6