Is my answers right? if not what do i need to do?

For questions 3-4, factor the quadratic expression completely, and find the roots of the expression.

3. (3 points) 20x2 + 13x + 2

(5x+2)(4x+1)

4. (3 points) 49x2 - 14x - 3
(7x+1)(7x-3)

Question

Is my answers right? if not what do i need to do?

For questions 3-4, factor the quadratic expression completely, and find the roots of the expression.

3.	(3 points)   20x2 + 13x + 2

(5x+2)(4x+1)

4.	(3 points)   49x2 - 14x - 3
(7x+1)(7x-3)

anonymous · Answer

the factorization is correct ,know solved the factored forms for the roots:
(5x+2)(4x+1)=0=>x=-2/5   or x=-1/4 
(7x+1)(7x-3)=0=>x=-1/7  or x=3/7

anonymous · Answer

THANK YOU