Question

solve the quadratic equation 5×2+13×+8=0 by using for mul​

Answer 1

Answer:

5x^2+13x+8=0

=> 5x^2+8x+5x+8=0

=> x(5x+8)+1(5x+8)=0

=> (5x+8)(x+1)=0

so,

5x+8=0

=> 5x= -8

=> x= -8/5

again,

x+1=0

=> x= -1

Answer 2

Answer:

X=(-1,-8/5)

Step-by-step explanation:

So for this quadratic equation we use middle term break formula we break 13 in such way that it product becomes equal to product of 8,5 and addition equals to 13 so mathematically

5x²+13x+8=0

5x²+5x+8x+8=0

5x(X+1)+8(X+1)=o

5x+8=0. x+1=0

X=8/5. X=-1