What is factor a^2+a-20 ?

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

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factor a^2+a-20

factor

a^{2} + a - 20

(a - 4) (a + 5)

Solution steps

a^{2} + a - 20

Break the expression into groups

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

Factor out

a

from

a^{2} - 4 a : a (a - 4)

Factor out

5

from

5 a - 20 : 5 (a - 4)

= a (a - 4) + 5 (a - 4)

Factor out common term

a - 4

= (a - 4) (a + 5)

\frac{50}{45}

(0.2)^{2}

x^{2} + 5 x - 10

6 j = 48

\frac{1}{\frac{15}{17}}