What is factor K^2-3K-28 ?

The solution to factor K^2-3K-28 is (K+4)(K-7)

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factor K^2-3K-28

factor

K^{2} - 3 K - 28

(K + 4) (K - 7)

Solution steps

K^{2} - 3 K - 28

Break the expression into groups

= (K^{2} + 4 K) + (- 7 K - 28)

Factor out

K

from

K^{2} + 4 K : K (K + 4)

Factor out

- 7

from

- 7 K - 28 : - 7 (K + 4)

= K (K + 4) - 7 (K + 4)

Factor out common term

K + 4

= (K + 4) (K - 7)

\frac{2 x - 10}{3} - \frac{3 ( x - 12 )}{4} = - 1

\frac{1}{8} x^{3} - \frac{1}{27} y^{3}

(x + 1) (2 x + 3) = 2 x^{2} + 8 x + 5

y^{2} - 9 y + 14

81 x^{4} - 1