What is factor 4a^2+21a+5 ?

The solution to factor 4a^2+21a+5 is (4a+1)(a+5)

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factor 4a^2+21a+5

factor

4 a^{2} + 21 a + 5

(4 a + 1) (a + 5)

Solution steps

4 a^{2} + 21 a + 5

Break the expression into groups

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

Factor out

a

from

4 a^{2} + a : a (4 a + 1)

Factor out

5

from

20 a + 5 : 5 (4 a + 1)

= a (4 a + 1) + 5 (4 a + 1)

Factor out common term

4 a + 1

= (4 a + 1) (a + 5)

4 x + 21 = - 9 - 2 x

61 = - x

3 x^{2} - 15 = - 75

(v^{3})^{3}

\frac{y}{4} = 3