Question

Find the roots by quadratic formula
4x2+28x +13 = 0​

Answer 1

Answer:

x= -13/2 x= -1/2

Step-by-step explanation:

4x^2+28x+13= 0

4x^2+(26+2)x+13= 0

4x^2+26x+2x+13= 0

2x(2x+13)+1(2x+13)= 0

(2x+13)(2x+1)= 0

2x+13= 0 2x+1= 0

or, x= -13/2 or, x= -1/2