What is factor 20z^2+z-1 ?

The solution to factor 20z^2+z-1 is (5z-1)(4z+1)

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factor 20z^2+z-1

factor

20 z^{2} + z - 1

(5 z - 1) (4 z + 1)

Solution steps

20 z^{2} + z - 1

Break the expression into groups

= (20 z^{2} - 4 z) + (5 z - 1)

Factor out

4 z

from

20 z^{2} - 4 z : 4 z (5 z - 1)

= 4 z (5 z - 1) + (5 z - 1)

Factor out common term

(5 z - 1) : (5 z - 1) (4 z + 1)

= (5 z - 1) (4 z + 1)

3 n^{2} + 30 n + 75

(\frac{7}{9})^{2}

∣ 5 x + 7 ∣ + 9 < 1

x^{2} < 18

\frac{( 3 r s ^{2} t ^{4} ) ^{2}}{21 r ^{2} s ^{3} t ^{11}}