What is factor 15x^2-x-28 ?

The solution to factor 15x^2-x-28 is (3x+4)(5x-7)

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factor 15x^2-x-28

factor

15 x^{2} - x - 28

(3 x + 4) (5 x - 7)

Solution steps

15 x^{2} - x - 28

Break the expression into groups

= (15 x^{2} + 20 x) + (- 21 x - 28)

Factor out

5 x

from

15 x^{2} + 20 x : 5 x (3 x + 4)

Factor out

- 7

from

- 21 x - 28 : - 7 (3 x + 4)

= 5 x (3 x + 4) - 7 (3 x + 4)

Factor out common term

3 x + 4

= (3 x + 4) (5 x - 7)

(\frac{7 ^{- 3}}{10})^{- 2}

lo g_{6} (6)

\frac{3 a ^{2} b ^{- 4}}{12 a ^{- 2} b ^{- 2}}

4 8^{\frac{1}{4}}

3 x (5 - x) = 2