What is factor 5a^2-4a-28 ?

The solution to factor 5a^2-4a-28 is (a+2)(5a-14)

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factor 5a^2-4a-28

factor

5 a^{2} - 4 a - 28

(a + 2) (5 a - 14)

Solution steps

5 a^{2} - 4 a - 28

Break the expression into groups

= (5 a^{2} + 10 a) + (- 14 a - 28)

Factor out

5 a

from

5 a^{2} + 10 a : 5 a (a + 2)

Factor out

- 14

from

- 14 a - 28 : - 14 (a + 2)

= 5 a (a + 2) - 14 (a + 2)

Factor out common term

a + 2

= (a + 2) (5 a - 14)

1 - 1

z^{2} + 9 z + 20 = 0

w - 144 = - 11

(2 - 3 x)^{2} \leq (4 + 8 x)^{2}

5 + x - 3 x = 7 - 2 x